[UNDER-1 5 a.] Clothing worn below the upper or outer garments, esp. next to the skin. Also fig.
1835. T. Mitchell, Acharn. of Aristoph., 1061, note. Used also of veils, and womens underclothing.
1866. Rogers, Agric. & Prices, I. xxii. 572. Linen for two purposesfor under-clothing, and for the table.
1878. Spurgeon, Treas. Dav., Ps. cix. 29. Where sin is the underclothing, shame will soon be the outer vesture.