Ecthlipsis :: Ecthlipsis (n.) The dropping out or suppression from a word of a consonant, with or without a vowel..
Ecthlipsis :: Ecthlipsis (n.) The elision of a final m, with the preceding vowel, before a word beginning with a vowel..
Thlipsis :: Thlipsis (n.) Compression, especially constriction of vessels by an external cause..