Circlet

n. 1. A little circle, as of gold, jewels, &c. “Her fair locks in rich circlet be enroled.” Spenser.

2Sense 2. A round body; an orb.

Fairest of stars . . . that crown’st the smiling morn With thy bright circlet. Milton.

3Sense 3. A circular piece of wood put under a dish at table. [Prov. Eng.] Halliwell.