ACONITE Meaning of ACONITE in English [ac.o.nite] n [MF or L; fr. L aconitum, fr. Gk akoniton] (1578) 1: monkshood 2: the dried tuberous root of a common monkshood (Aconitum napellus) formerly used as a sedative and anodyne Merriam-Webster English vocab. Английский словарь Merriam Webster. 2012