ῥητός

1. stated, specified , (Iliad by Homer); ἐς χρόνον ῥητόν at a set or stated time, (Herdotus Historicus); ἡμέραι ῥ. (Thucydides); ἐπὶ ῥητοῖς γέρασι with fixed prerogatives, (Thucydides); ῥ. ἀργύριον a stated sum, (Thucydides); ἐπὶ ῥητοῖς on stated terms, on certain conditions , (Herdotus Historicus):—;adverb ῥητῶς, expressly, distinctly , (New Testament)

2. spoken of, known, famous , (Hesiod)

3. that may be spoken or told , (Aeschulus Tragicus); ῥητὸν ἄρρητόν τ᾽ ἔπος, Lat. fas nefasque, (Sophocles Tragicus)

4. in Mathem., ῥητά are rational quantities , opposite to surds ἄλογα); (Plato Philosophus) (ML)