εντελώς

Etymology: From Ancient Greek ἐντελής (entelḗs, 'complete, perfect, accomplished') + -ως (-ōs, adverbial suffix). The root ἐντελής comes from ἐν (en, 'in') + τέλος (télos, 'end, goal, completion'). The concept relates to something that has reached its end or goal, thus being complete or perfect. English words like 'teleology' (study of purpose) and 'entelechy' (realization of potential) share the same Greek root τέλος.