[verb] [I]The child sickened and died.(UK) "You look feverish. Are you sickening for (= about to become ill with) something?" [I](figurative) Eventually she sickened of (= became tired of) the demands made by her employer, and left her job. [I]
SICKEN
Meaning of SICKEN in English
Cambridge English vocab. Кембриджский английский словарь. 2012