ἐνδεχομένως
From LSJ
γραμματική ἐστιν ἐμπειρία τῶν παρὰ ποιηταῖς τε καὶ συγγραφεῦσιν ὡς ἐπὶ τὸ πολὺ λεγομένων → grammar is a practical knowledge of the usage of poets and writers of prose
English (LSJ)
Adv. of foreg.,
A = ὅσον ἐνδέχεται, Decr. ap. D.18.165, Plb.1.20.4, al., D.S.20.26, LXX 2 Ma.13.26, etc.; ὡς ἐ. PPetr.2p.53; ἀντέγραψεν ἐ. to the best of his ability, Aristeas 41.