rotundatio
From LSJ
Ἱκανὸν τὸ νικᾶν ἐστι τοῖς ἐλευθέροις → Vicisse satis est inter liberos tibi → Den Freigesinnten reicht zu siegen durchaus hin
Latin > English (Lewis & Short)
rŏtundātĭo: ōnis, f. rotundo,
I a making round, a rounding: linea rotundationis, i. e. the circumference, Vitr. 1, 6 fin.; 3, 1; 10, 11.