eclipsis

noun

1. (countable, obsolete, uncountable)An omission of words needed to fully express the sense of a phrase.
2. (countable, uncountable)A line or dash used to show that text has been omitted.
3. (Irish, countable, uncountable)A mutation of the initial sound of a word by which voiceless sounds become voiced, voiced stops become nasal consonants, and vowels acquire a prothetic nasal consonant: see Appendix:Irish mutations#Eclipsis.