Etymology
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menstruate (v.)

1680s, "pollute with menstrual blood" (transitive), a sense now rare or obsolete; 1752 as "to discharge the menses," probably a back-formation from menstruation, or else from Latin menstruatus, past participle of menstruare, from menstruus "monthly," from mensis "month" (see moon (n.)). Related: Menstruated; menstruating.

updated on December 03, 2021

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Definitions of menstruate from WordNet

menstruate (v.)
undergo menstruation;
Synonyms: flow
Etymologies are not definitions. From wordnet.princeton.edu, not affiliated with etymonline.