ὁ γὰρ μανθάνων κιθαρίζειν κιθαρίζων μανθάνει κιθαρίζειν → he who is learning the harp, learns the harp by harping
extraining: P. and V. ἡδύς, τερπνός, V. θυμηδής, ἐφίμερος, Ar. and V. γλυκύς.
soothing: V. κηλητήριος, θελκτήριος.