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The Collaborative International Dictionary
Masculate

Masculate \Mas"cu*late\, v. t. [L. masculus male, masculine.] To make strong. [Obs.]
--Cockeram.

Douglas Harper's Etymology Dictionary
masculate

"to make masculine," 1620s, from Latin masculatus, from masculus (see masculine). Related: Masculated; masculating. Also in same sense is masculinize (1912).

Wiktionary
masculate

vb. (context obsolete transitive English) To make strong.