Crisis
late Middle English (denoting the turning point of a disease): medical Latin, from Greek krisis ‘decision’, from krinein ‘decide’. The general sense ‘decisive point’ dates from the early 17th century.
wiktionary
From Latin crisis, from Ancient Greek κρίσις(krísis, “a separating, power of distinguishing, decision, choice, election, judgment, dispute”), from κρίνω(krínō, “pick out, choose, decide, judge”).
etymonline
crisis (n.)
early 15c., crise, crisis, "decisive point in the progress of a disease," also "vitally important or decisive state of things, point at which change must come, for better or worse," from Latinized form of Greek krisis "turning point in a disease, that change which indicates recovery or death" (used as such by Hippocrates and Galen), literally "judgment, result of a trial, selection," from krinein "to separate, decide, judge," from PIE root *krei- "to sieve," thus "discriminate, distinguish."
Transferred non-medical sense is 1620s in English. A German term for "mid-life crisis" is Torschlusspanik, literally "shut-door-panic," fear of being on the wrong side of a closing gate.
