ἐντείνειν
From LSJ
Ὁ συκοφάντης ἐστὶν ἐν πόλει λύκος (τοῖς πέλας λύκος) → Calumniator, quemquem novit, huic lupus'st → Der Denunziant lebt in der Stadt gleichsam als Wolf (ist seinen Nachbarn wie ein Wolf)
Greek > English (Woodhouse Verbs Reversed)
(see also ἐντείνω): bend, deal, deliver, draw, stretch, tight, tighten, exert oneself, inscribe geometrically, make an effort, make taut, set to music, strain oneself make an effort