Trivet (?), n. [Probably through French fr. L. tripes, -edis, three-footed; tri- (see Tri-)+ pes, pedis, foot: cf. F. trépied. See Foot, and cf. Tripod.] 1. A tree-legged stool, table, or other support; especially, a stand to hold a kettle or similar vessel near the fire; a tripod. [Written also trevet.]
[1913 Webster]

2. A weaver's knife. See Trevat. Knight.
[1913 Webster]

Trivet table, a table supported by three legs. Dryden.
[1913 Webster]