τετραγωνίζω

English (LSJ)

   A make square, square, of lines or numbers, Pl.R.527a, Arist. Metaph.996b21; ὅσαι γραμμαὶ τὸν ἰσόπλευρον . . ἀριθμὸν τετραγωνίζουσι all lines which form an equilateral number as their square, Pl. Tht.148a; τ. τὸν κύκλον square the circle, Arist.SE171b16:—Pass., Id.APr.69a31.    2 Astrol., to be in quartile aspect, Ptol.Tetr. 34.