Synalepha

from The Collaborative International Dictionary of English v.0.48
Synalepha \Syn`a*le"pha\, n. [NL., fr. L. synaloepha, Gr. ?,
   from ? to melt together; sy`n with + ? to besmear.] (Gram.)
   A contraction of syllables by suppressing some vowel or
   diphthong at the end of a word, before another vowel or
   diphthong; as, th' army, for the army. [Written also
   {synaloepha}.]
   [1913 Webster]
    

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