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Affix Placement and Category Sensitivity Week 2 Part 2 Video 4

Jul 7, 2025

Overview

This lecture discusses how affixes in English attach to specific word categories, emphasizing that knowing a morpheme includes understanding its syntactic placement, meaning, and pronunciation.

Syntactic Placement of Affixes

  • Affixes (prefixes/suffixes) need to attach to specific locations in a word, such as the beginning (prefix) or end (suffix).
  • Example: The suffix -s is a suffix and must go at the end of a word (e.g., lines, not *slines).
  • Affixes do not attach to every word; their placement depends on the grammatical category of the word.*

Category Sensitivity of Affixes

  • The suffix -s only attaches to nouns (e.g., tables, dogs, pens), not to adjectives (e.g., *joyfuls).
  • The prefix re- attaches to verbs (e.g., rewrite), not to adjectives (e.g., *redelicious).
  • The oddness of words like *joyfuls or *redelicious comes from affixing to the wrong category, not from unclear meaning.

What We Know About Morphemes

  • Knowing a morpheme involves knowing its syntactic placement (where it attaches), its meaning, and its pronunciation.
  • Descriptive rules and stored knowledge of morphemes and affixes are fundamental in understanding language.

Preview of Next Week: Grammatical Categories

  • Terms like noun, verb, and adjective are central to affix placement rules.
  • Understanding what defines a noun, verb, or adjective will be covered in the next lecture.

Key Terms & Definitions

  • Morpheme — the smallest unit of meaning in a language.
  • Affix — a morpheme attached to a base word; includes prefixes and suffixes.
  • Suffix — an affix attached at the end of a word (e.g., -s).
  • Prefix — an affix attached at the beginning of a word (e.g., re-).
  • Noun — a word category typically referring to a person, place, thing, or idea.
  • Verb — a word category expressing an action or state.
  • Adjective — a word category describing properties or qualities of nouns.

Action Items / Next Steps

  • Prepare for next week’s lecture on the definitions and properties of nouns, verbs, and adjectives.