Punish
Middle English: from Old French puniss-, lengthened stem of punir ‘punish’, from Latin punire, from poena ‘penalty’.
wiktionary
From Middle English punischen, from Anglo-Norman, Old Frenchpuniss-, stem of some of the conjugated forms of punir, from Latin puniō(“I inflict punishment upon”), from poena(“punishment, penalty”); see pain.
etymonline
punish (v.)
c. 1300, punishen, "inflict a penalty on," from Old French puniss-, extended present-participle stem of punir "to punish," from Latin punire "punish, correct, chastise; take vengeance for; inflict a penalty on, cause pain for some offense," earlier poenire, from poena "penalty, punishment" (see penal). Colloquial meaning "to inflict heavy damage or loss" is recorded from 1801, originally in pugilism. Related: Punished; punishing.