Historical Syntax: Reanalysis, Grammaticalization & the Pro-Drop Parameter

Overview

These notes condense a video-lecture that surveys the main mechanisms of syntactic change, with a special focus on

1. Reanalysis (sometimes called metanalysis)

2. Grammaticalization

3. The distinction between lexical/morphological change and abstract syntactic/semantic change

4. The “Principles & Parameters” model of Universal Grammar (UG), particularly the pro-drop parameter

5. The role and nature of empty categories (PRO vs. pro) in explaining surface differences among languages

6. Diachronic consequences (e.g.Old vs. Modern English) and broader theoretical / practical implications

Reanalysis (aka Metanalysis)

Definition
• Reanalysis is a historical process in which speakers reinterpret the internal structure of a linguistic form, phrase, or construction without overtly changing its surface sequence.
• The lecture labels this as Level-1 change (the very first type discussed).

Key properties

1. It is speaker-internal: a change in mental parsing.

2. It is often the precursor to later, more visible changes (e.g.phonological reduction, grammaticalization).

3. It can occur at any grammatical level (phonology, morphology, syntax).

Illustrative scenario

Significance
• Reanalysis creates the structural conditions for innovations while preserving communicative continuity.

Grammaticalization

Definition
• The video cites “Key Smart, King Minne & Andre (1980)”—(originally Lehmann 1982)—who define grammaticalization as an evolutionary path whereby a linguistic unit loses

1. semantic complexity,

2. pragmatic independence,

3. syntactic freedom, and

4. phonetic substance.

In simpler terms, lexical items become functional/morphological items.

Typical pathways
lexical adjective/verb → adposition → auxiliary → inflectional affix

Parameters of change (after Lehmann)

1. Weight: \text{phonetic~reduction}

2. Bondedness: from free to bound morpheme

3. Structural scope: larger syntactic domain

4. Paradigmaticity: enters a closed functional paradigm

Examples mentioned
• Adjectives > classifiers
• Determiners & auxiliaries emerging from verbs
• New inflectional endings created by cliticization

Why included in “syntactic change”?
• Although often treated in morphology, grammaticalization interacts with syntactic structures (e.g.word-order freezing, creation of new functional projections).

Morphological vs. Syntactic / Semantic Change

The lecture distinguishes two broad research foci:

1. Lexical/Morphological Change – investigates individual lexemes and morphemes.

2. Structural / Semantic Change – investigates abstract properties (principles) shared across languages.

Key insight: While morphology tracks visible pieces, syntax tracks the invisible architecture. The speaker repeatedly notes that “principles are universal; parameter settings create cross-linguistic differences.”

Universal Grammar: Principles & Parameters

Principles
• Invariant architectural rules hard-wired in UG, common to all languages.

Parameters
• Binary (ON/OFF) options that UG provides to account for language-specific variation.
• Formally, we can model a parameter P as P \in {0,1} where 0 = \text{OFF},\;1 = \text{ON}.

Implication: Tiny flips in parameter values suffice to derive large surface divergences among languages.

Empty Categories

The video stresses two distinct entities, both spelled “pro” in literature but differentiated here as:

Important contrasts
• Big PRO only surfaces in non-finite clauses; it requires control by a matrix argument (e.g.“we” above).
• Little pro is licensed solely when a language has set the pro-drop parameter to ON.

The Pro-Drop Parameter

Binary Setting
\pm pro\text{-drop}
ON → language allows null pronominal subjects.
OFF → language requires overt subjects.

Languages mentioned
• ON: Italian, Japanese, (classical) Latin, Old English (historically).
• OFF: Modern English, French (except restricted enclitic uses).

Consequences

1. Surface subject omission (but underlying syntactic representation still contains pro).

2. Agreement morphology tends to be richer in pro-drop languages, supplying the necessary person/number cues.

3. Diachrony: Loss of verbal agreement (e.g.from Old → Modern English) correlates with parametric shift OFF, forcing overt subjects.

Diagnostic tests discussed
• Presence/absence of expletives: English requires “it” in weather verbs; Italian does not.
• Embedded finite clauses: ability/inability to leave subject position empty.

Diachronic Illustration: Old vs. Modern English

Historical trajectory:

1. Old English (OE) still displayed the pro-drop setting (ON) → frequent subject omission.

2. Over time, OE lost rich agreement morphology → weakening of cues needed to identify pro.

3. Modern English resets parameter to OFF → obligatory overt subjects, use of expletive “there/it.”

Synthesis & Practical Implications

1. Reanalysis creates new internal structures; grammaticalization supplies new exponents for those structures.

2. Principles & Parameters offer a compact theory to relate micro-events (e.g.phonetic reduction) to macro-variation across time and languages.

3. Understanding empty categories is vital for:
   • parsing learner data,
   • designing comparative syntactic experiments,
   • reconstructing historical stages from written corpora.

4. Ethical/Philosophical angle: The notion that minimal cognitive switches (parameters) can explain vast typological diversity re-frames debates on linguistic relativism vs. universalism.

Key Terms Glossary

• Reanalysis / Metanalysis – reinterpretation without overt change.
• Grammaticalization – lexical → functional evolution with loss of autonomy.
• Principles – universal constraints of UG.
• Parameters – binary switches creating variation.
• Big PRO – null subject in non-finite clauses (control).
• Little pro – null pronominal in finite clauses (pro-drop).
• Pro-Drop – the parameter allowing pro subjects.
• Expletive – semantically empty but syntactically required subject (e.g.“It rains”).

Quick-Reference Equations & Schemas

1. Parameter model: P_{\text{language}} = \begin{cases}1 & \text{if ON (allows pro-drop)}\0 & \text{if OFF (requires overt subject)}\end{cases}

2. Grammaticalization trajectory (schematic):
   \text{Lexeme} \;\rightarrow\; \text{Clitic} \;\rightarrow\; \text{Affix}

3. Reanalysis pattern:
   [X\;Y]{\text{old}} \;\rightarrow\; [X]{\text{new}}[Y]_{\text{new}} (rebracketing)

Study Tips

• Trace specific examples (Latin → Romance, OE → ModE) to solidify each mechanism.
• Practice identifying PRO vs. pro in real sentences; check clause finiteness.
• Map any suspected grammaticalization change onto Lehmann’s parameters to predict its phonetic and syntactic consequences.