noun
or syn·a·le·pha ˌsinəˈlēfə
( -s )
Etymology: New Latin, from Greek synaloiphē, synaliphē, from synaleiphein to clog up, coalesce, unite two syllables into one, from syn- + aleiphein to anoint, besmear; akin to Greek lipos fat — more at leave
: the blending into one syllable of two vowels of adjacent syllables (as by crasis, synaeresis, synizesis, elision) ; especially : a contraction of syllables by obscuring or suppressing a vowel or diphthong at the end of a word before another vowel or diphtong (as in th' army, for the army )