existential (adj.)youdaoicibaDictYouDict[existential 词源字典]
1690s, "pertaining to existence," from Late Latin existentialis/exsistentialis, from existentia/exsistentia (see existence). As a term in logic, from 1819; in philosophy, from 1937, tracing back to the Danish works of Kierkegaard (see existentialism). Related: Existentially.[existential etymology, existential origin, 英语词源]