Find the word definition

Douglas Harper's Etymology Dictionary
feuillemorte

"of the color of a dead leaf," 1640s, fieulamort, from French feuille morte, literally "dead leaf" (see folio + mortal (adj.)). A word of loose spelling, variants include phyllamort, filemot, philomot.

Wiktionary
feuillemorte

a. Of the color of dead or dying leaves.