strength: P. and V. ῥώμη, ἡ, ἰσχύς, ἡ, V. σθένος, τό, ἀλκή, ἡ, κῖκυς, ἡ (Aesch., Fragment).
zeal, energy: P. and V. σπουδή, ἡ, προθυμία, ἡ.
full vigour, prime: P. and V. ἀκμή, ἡ; see prime.
in full vigour, unimpaired: use adj., P. and V. ἀκραιφνής.