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s.v.

τύμβος, ὦ νυμφεῖον, ὦ κατασκαφής οἴκησις αἰείφρουρος, οἷ πορεύομαι πρὸς τοὺς ἐμαυτῆς -> Tomb, bridal chamber, eternal prison in the caverned rock, whither I go to find mine own.
Sophocles, Antigone, 883

Abbreviation of Latin sub verbo (under the word, under the words) or sub voce (under the word or heading), plural sub verbis resp. sub vocibus.