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c.1300, "store, treasure," from Old French garison "defense" (Modern French guérison "cure, recovery, healing") from garir "defend" (see garret). Meaning "fortified stronghold" is from early 15c.; that of "body of troops in a fortress" is from mid-15c., a sense taken over from Middle English garnison "body of armed men" (late 14c.), from Old French garnison "provision, munitions," from garnir "to furnish, provide."
1560s, from garrison (n.). Related: Garrisoned; garrisoning.
(1.) Heb. matstsab, a station; a place where one stands (1 Sam. 14:12); a military or fortified post (1 Sam. 13:23; 14:1, 4, 6, etc.). (2.) Heb. netsib, a prefect, superintendent; hence a military post (1 Sam. 10:5; 13:3, 4; 2 Sam. 8:6). This word has also been explained to denote a pillar set up to mark the Philistine conquest, or an officer appointed to collect taxes; but the idea of a military post seems to be the correct one. (3.) Heb. matstsebah, properly a monumental column; improperly rendered pl. "garrisons" in Ezek. 26:11; correctly in Revised Version "pillars," marg. "obelisks," probably an idolatrous image.