menstruate

menstruum +‎ -ate; sense 2 (“to undergo menstruation”) is possibly a back-formation from menstruation.[1]

• (Received Pronunciation) IPA^(key): /ˈmɛnstɹʊeɪt/
• (General American) IPA^(key): /ˌmɛnstɹuˈeɪt/, /ˈmɛnstɹəˌweɪt/, /ˌmɛnˈstɹeɪt/ (the latter pronunciation leading to the spelling menstrate)
• Rhymes: -eɪt
• Hyphenation: men‧stru‧ate

menstruate (third-person singular simple present menstruates, present participle menstruating, simple past and past participle menstruated)

1. (transitive, obsolete, rare) To stain with or as if with menses.
2. (intransitive) To undergo menstruation, to have a period.

   Synonyms: be on one's period, be on the rag

• menstrate (nonstandard, possibly proscribed)

• menstrual
• menstruation
• menstruator
• menstruous

menstruate (not comparable)

1. (obsolete) Menstrual.

• menstruation on Wikipedia.Wikipedia

• tsunameter

menstruate

1. second-person plural present indicative of menstruare
2. second-person plural imperative of menstruare
3. feminine plural of the past participle of menstruare

menstruāte

1. second-person plural present active imperative of menstruō