English

Alternative forms

• pumy stone [16th-17th c.]

Noun

pumice stone ‎(plural pumice stones)

1. A piece of pumice; also used as a collective noun.
   • 1590, Edmund Spenser, The Faerie Queene, III.v:

     in the midst a little riuer plaide / Emongst the pumy stones, which seemd to plaine / With gentle murmure, that his course they did restraine.