Elision
ELI'SION, noun s as z. [Latin elisio, from elido, to strike off; e and loedo.]
1. In grammar, the cutting off or suppression of a vowel at the end of a word, for the sake of sound or measure, when the next word begins with a vowel; as, th' embattled plain; th' empyreal sphere.
2. Division; separation. [Not used.]