Meaning

noun female equine animal

noun a dark region of considerable extent on the surface of the moon

originFrom Middle English mare, meare, meir, mer, mere, meyre, mure, from Old English mīere (“female horse, mare”), from Proto-West Germanic *marhijā, from Proto-Germanic *marhijō (“female horse”), from *marhaz (“horse”), from Proto-Indo-European *márkos (“horse”). Cognates Cognate with Scots mere (“mare”), Saterland Frisian Märe (“mare”), West Frisian merje (“mare”), Dutch merrie (“mare”), German…

Etymology from Wiktionary, CC BY-SA 3.0