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epenthesis.

The insertion of a phoneme, letter, or syllable into a word, usually to satisfy the phonological constraints of a language or poetic context.

10 characters4 syllables approx.English language

Meaning & usage

noun/ɪˈpɛn.θə.sɪs/
  1. The insertion of a phoneme, letter, or syllable into a word, usually to satisfy the phonological constraints of a language or poetic context.

    countable · rhetoric · uncountable
Where this word comes from

Middle of 16th century: via Late Latin, from Ancient Greek ἐπένθεσις (epénthesis), from ἐπεντίθημι (epentíthēmi, “to insert”), from ἐπί (epí) + ἐντίθημι (entíthēmi, “to put in”), from ἐν (en, “in”) + τίθημι (títhēmi, “to put, place”).

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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.

Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.