RhymeZone: swarth definitions

Definitions of swarth:

adjective: (archaic) swarthy
noun: An apparition of a person about to die; a wraith.
noun: Alternative form of sward [(uncountable) Earth which grass has grown into the upper layer of; greensward, sod, turf; (countable) a portion of such earth.]

(Definitions from Wiktionary)