Is it ensure, insure, or assure?
late 14c., "male human being; male fish or land animal," from Old French masle (adj.) "masculine, male, adult," also used as a noun (12c., Modern French mâle), from Latin masculus "masculine, male, worthy of a man" (cf. Provençal mascle, Spanish macho, Italian maschio), diminutive of mas (genitive maris) "male person or animal, male."
late 14c., from Old French male, masle "male, masculine; a male" (see male (n.)). Mechanical sense of "part of an instrument that penetrates another part" is from 1660s.
Of, relating to, or designating the sex that has organs to produce spermatozoa for fertilizing ova. n.
A member of the sex that begets young by fertilizing ova.
A man or boy.
Noun A male organism.