triga
From LSJ
ἀσκεῖν περὶ τὰ νοσήματα δύο, ὠφελεῖν ἢ μὴ βλάπτειν → strive, with regard to diseases, for two things — to do good, or to do no harm | as to diseases, make a habit of two things — to help, or at least, to do no harm
Latin > English (Lewis & Short)
trīga: ae, f. contr. from triiuga. *
I A team of three horses, or a chariot drawn by three horses, Dig. 21, 1, 38, § 14.—
II A set of three, a triad, three, Arn. 4, 136; cf. Anthol. Lat. 1, p. 439.
Latin > French (Gaffiot 2016)
trīga, æ, f. (trijuga), attelage de trois chevaux de front, trige : Dig. 21, 1, 38, 14 || ensemble de trois ; triade : Arn. 4, 15.