ἐμπύρ-ευμα · empyr-euma — LSJ
a live coal covered with ashes, so as to allow of the fire being rekindled (λείψανον, Hsch.; ἔναυσμα, Suid.), Arist. Frr. 225, 226, Gal. 11.629: metaph., Ph. 2.59, al., Longus 1.29; ἀρετῆς Jul. ad Ath. 269d (2): pl., ζωῆς ἐ. embers, hidden sparks, Simp. in Cael. 677.11.