[het.ero.clite] n (1580) 1: a word irregular in inflection; esp: a noun irregular in declension
2: one that deviates from common rules or forms
[2]heteroclite adj [MF or LL; MF, fr. LL heteroclitus, fr. Gk heteroklitos, fr. heter- + klinein to lean, inflect--more at lean] (1598): deviating from common forms or rules