elision (en)

(linguistics) the omission of a sound or syllable when speaking OR the act or an instance of omitting something

fractious (en)

difficult to control; unruly; irritable and quarrelsome

sublation (en)

(verb) philosophy: to negate or eliminate (as an element in a dialectic process) but preserve as a partial element in a synthesis; assimilate (a smaller entity) into a larger one; used by Hegel