διατρῐβή · diatribē — LSJ
wearing away, esp. of Time, way or manner of spending, χρόνου τε διατριβὰς . . ἐφηῦρε . . πεσσοὺς κύβους τε pastimes, S. Fr. 479.2: hence, abs.,
pastime, amusement, Ar. Pl. 923, Alex. 219.4, etc.; ἐν συνουσίᾳ τινὶ καὶ δ. D. 21.71; γέλωτα καὶ δ. παρέχειν τινί Aeschin. 1.175, cf. Plu. Tim. 11; τοῦ συμποσίου δ. Alex. 185; παρέσχε τοῖς κωμικοῖς δ. materiem jocandi, [fodder for jokes] Plu. Per. 4, cf. Jul. Or. 2.52b; place of amusement, Men. 481.10, Bato 2.4.
serious occupation, study, etc., τοὺς ἐν φιλοσοφίᾳ καὶ τῇ τοιᾷδε δ. τεθραμμένους Pl. Tht. 172c; διατριβὰς ποιεῖσθαι περί τι Lys. 16.11, cf. Is. 11.37; πρός τι Aeschin. 2.38; ἐπί τινι Ar. Ra. 1498; ἡ δ. τὰ πολλὰ ἐν λόγοις Pl. Ly. 204a.
discourse, τὰς ἐμὰς δ. καὶ τοὺς λόγους Id. Ap. 37d, cf. Grg. 484e, Isoc. 12.19, etc.; αἱ πολιτικαὶ δ. D.H. 10.15.
short ethical treatise or lecture, δ. βραχέος διανοήματος ἠθικοῦ ἔκτασις Hermog. Meth. 5, cf. Suid.: title of works by Zeno, Cleanthes, etc.
school of philosophy, Ath. 5.211d, al., Luc. Alex. 5; Μωυσοῦ καὶ Χριστοῦ Gal. 8.579; Ἐπικούρου δ. Numen. ap. Eus. PE 14.5; also, a place of teaching, school, ἡ ἐν τῷ κήπῳ δ. Epicur. Fr. 217, cf. Phld. Acad.Ind. p.39 M., Luc. Nigr. 25, Ath. 8.350b.
way of life, passing of time, δ. ἐν ἀγορᾷ Ar. Nu. 1055; δ. νέων ἐν δικαστηρίοις And. 4.32; ἡ ἐν Σικελίᾳ δ. stay there, Pl. Ep. 337e; ποιεῖσθαι ἐν τῷ ὑγρῷ τὴν δ., ἐν τῇ γῇ, Arist. HA 487a20, Resp. 474b26; διατριβὰς μετʼ ἀλλήλων διατρίβειν Aeschin. 1.147.
place of resort, haunt, τὰς ἐν Λυκείῳ δ. Pl. Euthphr. 2a; ᾖα ἐπὶ τὰς συνήθεις δ. Id. Chrm. 153a.
in bad sense, waste of time, loss of time, delay, with or without χρόνου, E. Ph. 751, etc.; δ. ποιεῖσθαι Isoc. 4.164: pl., δ. καὶ μελλήσεις Th. 5.82; χρόνου δ. ἐμποιεῖν, παρέχειν, Id. 3.38, X. Oec. 8.13, etc.; ἐμβαλεῖν Plu. Nic. 20; διατριβὴν ποτῷ ποιεῖν prolong a carouse, Alex. 226.4.
Rhet., occasion for dwelling on a subject, Arist. Rh. 1418a27 (pl.).
continuance, permanence, Id. Mete. 374a12.
sens. obsc., = συνουσία, Procop. Arc. 2.