χρή imperf. ἐχρῆν, also without the augm. χρῆν even in attic
I.it is fated, necessary, Aesch., etc.; οὐδὲ ἓν ἴαμα ὅ τι χρῆν προσφέροντας ὠφελεῖν no one remedy which one was sure to do good by administering, Thuc.:—c. inf. it must, must needs, one must or ought to do, Hom., attic; more often, like Lat. oportet, c. acc. pers. et inf. one must, one must needs, it behoves, befits one to . . , οὐδέ τί σε χρὴ νηλεὲς ἦτορ ἔχειν Il., etc.; often the inf. must be supplied from the context, τίπτε μάχης ἀποπαύεαι; οὐδέ τί σε χρή (sc. ἀποπαύεσθαι), why cease from battle? for it behoves thee not, Il.; so, ὅθι χρὴ πεζὸν ἐόντα (sc. μάρνασθαι) Od.; ἐπιπλεύσειέ τις ὡς χρή (sc. ἐπιπλεῦσαι) Thuc.:—absol., ἐρεῖ τις, οὐ χρῆν [sc. τοῦτο ποιεῖν], ἀλλὰ τί χρῆν εἴπατε Eur. ap. Ar.