Meaning

noun a title of address formerly used for a man of rank and authority

noun the founder of a family

noun male parent of an animal especially a domestic animal such as a horse

originFrom Middle English sire, from Old French sire, the nominative singular of seignor; from Latin senior, from senex. Doublet of seigneur, seignior, senhor, senior, señor, senyor, signore, and sir. Cognate with French monsieur.

Etymology from Wiktionary, CC BY-SA 3.0