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exigency (n.)
[exigency 词源字典]
1580s, "that which is needed," from Middle French
exigence
, from Latin
exigentia
"urgency" (see
exigence
). Meaning "state of being urgent" is from 1769. Related:
Exigencies
(1650s).
[exigency etymology, exigency origin, 英语词源]