['trevit]
n.
三脚铁架, 三脚火炉架

Trevet \Trev"et\, n. [See {Trivet}.]
A stool or other thing supported by three legs; a trivet.

Trivet \Triv"et\, n. [Probably through French fr. L. tripes,
-edis, three-footed; tri- (see {Tri-})+ pes, pedis, foot: cf.
F. tr['e]pied. 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}.]

2. A weaver's knife. See {Trevat}. --Knight.

{Trivet table}, a table supported by three legs. --Dryden.