τηρητέον

A. one must watch, τ. τινὰς εἰ . . Pl. R. 412e, cf. 413c, D.H. Rh. 10.19; τ. ὅτι Ach.Tat. Intr.Arat. 28; one must preserve, retain, τὸ φάντασμα ἑκάστου Epicur. Ep. 2p.37U.
Liddell, Scott & Jones
A Greek-English Lexicon, 1940
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