κοῦφος (kouphos)

1. light, nimble , [variant datesTragica Adespota; used by (Homer) only in neuter plural as. adverb κοῦφα προβιβάς stepping lightly on, (Iliad by Homer):—;metaphorically, κουφότεραι φρένες too buoyant , (Pindar)
2. metaphorically also light, easy , (Aeschulus Tragicus)
3. empty, unsubstantial, vain , (Sophocles Tragicus)
4. light in point of weight, opposite to βαρύς, (Plato Philosophus), etc.; κούφα σοι χθὼν ἐπάνωθε πέσοι may earth lie lightly on thee, sit tibi terra levis , (Euripides); of soldiers, ὡπλισμένοι κουφοτέροις ὅπλοις (Xenophon Historicus)
5. adverb -φως, lightly, nimbly , (Aeschulus Tragicus); κ. ἐσκευασμένοι, of soldiers, (Thucydides)
6. metaphorically lightly, with light heart , κουφότερόν μετεφώνεε (Odyssey by Homer); κούφως φέρειν to bear lightly , (Euripides); ὡς κουφότατα φέρειν (Herdotus Historicus)
7. lightly, with ease , (Aeschulus Tragicus) (ML)