τί ἥδιστον, τὸ ἐπιτυγχάνειν → what's pleasant, to get the goal
ἐνθρίζω: «ἐνθρίζειν· ἐνατενίζειν, νύσσειν» Ἡσύχ.
fijar, clavar, punzar Hsch., cf. tb. ἐνθράσσω y ἐνθρίσσω.