Contingency
来自Big Physics
mid 16th century (in the philosophical sense): from late Latin contingentia (in its medieval Latin sense ‘circumstance’), from contingere ‘befall’ (see contingent).
wiktionary
contingent + -cy (16th century).
etymonline
contingency (n.)
1560s, "quality of being contingent, openness to chance or free will, the possibility that that which happens might not have happened," from contingent + abstract noun suffix -cy. Meaning "a chance occurrence, an accident, an event which may or may not occur" is from 1610s.
