ἄκαμνος
From LSJ
ᾗ μήτε χλαῖνα μήτε σισύρα συμφέρει → content neither with cloak nor rug, be never satisfied, can't get no satisfaction, be hard to please
English (LSJ)
ον, unwearied, prob. f.l. for ἀκάμας, PMag.Berol.2.91.
Spanish (DGE)
-ον
incansable, infatigable de Helios Hymn.Mag.11.17 (pap.).