epenthesis

e·pen·the·sis  (-pnth-ss)

n. pl. e·pen·the·ses (-sz)

The insertion of a sound in the middle of a word, as in Middle English thunder from Old English thunor.

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[Late Latin, from Greek, from epentithenai, to insert : ep-, epi-, epi- + en-, in; see en-² + tithenai, to place; see dh- in Indo-European roots.]

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epen·thetic (pn-thtk) adj.

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epenthesis [ɛˈpɛnθɪsɪs]

n pl -ses [-ˌsiːz]

(Linguistics / Phonetics & Phonology) the insertion of a sound or letter into a word

[via Late Latin from Greek, from epentithenai to insert, from epi- + en-² + tithenai to place]

epenthetic  [ˌɛpɛnˈθɛtɪk] adj

Thesaurus

Noun

1.

epenthesis - the insertion of a vowel or consonant into a word to make its pronunciation easier; "the insertion of a vowel in the plural of the word `bush' is epenthesis" articulation - the aspect of pronunciation that involves bringing articulatory organs together so as to shape the sounds of speech