Meaning

noun a narrow strait connecting two bodies of water

verb make or become more narrow or restricted

verb define clearly

originFrom Middle English narow, narowe, narewe, narwe, naru, from Old English nearu (“narrow, strait, confined, constricted, not spacious, limited, petty; limited, poor, restricted; oppressive, causing anxiety (of that which restricts free action of body or mind), causing or accompanied by difficulty, hardship, oppressive; oppressed, not having free action; strict, severe”), from Proto-West Germanic…

Etymology from Wiktionary, CC BY-SA 3.0