D defs.my
Entry 2 senses Webster, 1913

Elison

/ĕl'-ĭs-ən/ · E·li·son · IPA /ˈɛlɪsən/
01 n. Division; separation.
  1. 1.
    Division; separation.[Obs.]
  2. 2.
    The cutting off or suppression of a vowel or syllable, for the sake of meter or euphony; esp., in poetry, the dropping of a final vowel standing before an initial vowel in the following word, when the two words are drawn together.(Gram.)