Trap \Trap\, v. t. [imp. & p. p. Trapped; p. pr. & vb. n. Trapping.]

[Akin to OE. trappe trappings, and perhaps from an Old French word of the same origin as E. drab a kind of cloth.]

To dress with ornaments; to adorn; -- said especially of horses.

Steeds . . . that trapped were in steel all glittering. --Chaucer.

To deck his hearse, and trap his tomb-black steed. --Spenser.

There she found her palfrey trapped In purple blazoned with armorial gold. --Tennyson.

Source: Webster's Revised Unabridged Dictionary (1913)