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mid-13c., "to equip (in any way)," from Old French apareillier (12c.), from Vulgar Latin *appariculare. This is either from Latin apparare "prepare, make ready" (see apparatus), or from Vulgar Latin *ad-particulare "to put things together." The meaning "to attire in proper clothing" is from mid-14c. Cognate with Italian aparecchiare, Spanish aparejar, Portuguese aparelhar. Related: Appareled; apparelled; appareling; apparelling.
"personal outfit or attire," early 14c., also "ship's rigging," from Old French apareil "preparation," from apareillier (see apparel (v.)). Earlier in same sense was apparelment (early 14c.).
In Old Testament times the distinction between male and female attire was not very marked. The statute forbidding men to wear female apparel (Deut. 22:5) referred especially to ornaments and head-dresses. Both men and women wore (1) an under garment or tunic, which was bound by a girdle. One who had only this tunic on was spoken of as "naked" (1 Sam. 19:24; Job 24:10; Isa. 20:2). Those in high stations sometimes wore two tunics, the outer being called the "upper garment" (1 Sam. 15:27; 18:4; 24:5; Job 1:20). (2.) They wore in common an over-garment ("mantle," Isa. 3:22; 1 Kings 19:13; 2 Kings 2:13), a loose and flowing robe. The folds of this upper garment could be formed into a lap (Ruth 3:15; Ps. 79:12; Prov. 17:23; Luke 6:38). Generals of armies usually wore scarlet robes (Judg. 8:26; Nah. 2:3). A form of conspicuous raiment is mentioned in Luke 20:46; comp. Matt. 23:5. Priests alone wore trousers. Both men and women wore turbans. Kings and nobles usually had a store of costly garments for festive occasions (Isa. 3:22; Zech. 3:4) and for presents (Gen. 45:22; Esther 4:4; 6:8, 11; 1 Sam. 18:4; 2 Kings 5:5; 10:22). Prophets and ascetics wore coarse garments (Isa. 20:2; Zech. 13:4; Matt. 3:4).