semestrium
From LSJ
καὶ λέγων ὅτι Πεπλήρωται ὁ καιρὸς καὶ ἤγγικεν ἡ βασιλεία τοῦ θεοῦ· μετανοεῖτε καὶ πιστεύετε ἐν τῷ εὐαγγελίῳ → declaring “The time has been accomplished and the kingdom of God is near: start repenting and believing in the gospel!” (Μark 1:15)
Latin > English (Lewis & Short)
sēmestrĭum: ii, n. id.,
I a half month, a fortnight, Col. 11, 2, 6.
Latin > French (Gaffiot 2016)
sēmestrĭum, ĭī, n. (semi, mensis), demi-mois, quinzaine : Col. Rust. 11, 2, 6.
Latin > German (Georges)
sēmēstrium, iī, n. (semi u. mensis), ein halber Monat, Colum. 11, 2, 6.