Standard Lemma guide

-ac

suffix · 3 senses · updated from the 2026-07-25 local source snapshot

Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.

Sound

Pronunciation

Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.

  • Received-Pronunciation: /æk/
  • US: /æk/
  • US:

1

suffix

Meaning 1

One affected with.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

2

suffix

Meaning 2

Of, belonging to.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

No example sentence was provided for this meaning.

Meaning relationships

Synonyms: none provided

Antonyms: none provided

3

suffix

Meaning 3

Used to form the names of nonsteroidal anti-inflammatory drugs (NSAIDs) that are derivatives of acetic acid.

Definition source: English Wiktionary via Wiktextract

Usage: morpheme

Examples

  • ketorolac

Meaning relationships

Synonyms: none provided

Antonyms: none provided

History

Etymology

From French -acque, from New Latin -acus, from Ancient Greek -ακός (-akós, “-ic”). Related to -ic and -y.

From acetic acid, which is used in the synthesis of many of these compounds.

Across languages

Translations

9 source translations are retained for this English entry.

  • Finnish: -akki — one affected with
  • Greek: -ακός (-akós) — one affected with
  • Greek: -ιακός (-iakós) — one affected with
  • Hungarian: -ák — one affected with
  • Hungarian: -ákus — one affected with
  • Hungarian: -ás — one affected with
  • Portuguese: -íaco — one affected with
  • Spanish: -aco — one affected with
  • Spanish: -aca — one affected with