ἔργαστρα
From LSJ
προγράψαντες οὖν τά τε θεωρήματα καὶ τὰ ἐπιτάγματα τὰ χρεῖαν ἔχοντα εἰς τὰς ἀποδείξιας αὐτῶν μετὰ ταῦτα γραψοῦμές τοι τὰ προκείμενα → having therefore written at the beginning the theorems and the postulates that are necessary for their proofs, we will then write out for you the propositions
English (LSJ)
τά,
A reward of labour, wage-cost, χλαμύδος PEdgar65.89 (iii B.C.). II name of an object belonging to an οἰνοχόη, φιάλη, etc., IG22.839.85, 1640.16, BCH32.6 (Delos, iv B.C.).
Greek (Liddell-Scott)
ἔργαστρα: τά, μισθὸς ἐργασίας, «ἐργατικά», Ἐπιγρ. Ἀθηνῶν CIA. II. 403, A. Rang. ant. hell. 857. στ. 16.