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French word chantage comes from French chanter (To crow. To sing.), French -age
chanter (French)
To crow. To sing.
-age (French)
(rare) Forming collective nouns.. Forming nouns with the sense of "action or result of Xing" or, more rarely, "action related to X".. Forming nouns with the sense of "state of being (a) X".
chantage (French)
Blackmail, shakedown (threat to obtain some advantage).