intercalarius
From LSJ
αὐτὸν κέκρουκας τὸν βατῆρα τοῦ λόγου → you have struck the very threshold of the argument, you have struck the most important and chiefmost point
Latin > English (Lewis & Short)
intercălārĭus: a, um, adj. intercalaris,
I of or for insertion, intercalary: mensis, an intercalary month, Liv. 1, 19, 6; 37, 59, 2; Suet. Caes. 40; the same absol.: intercalarius, Cic. Verr. 2, 2, 52, § 130: annus, leap-year, Plin. 2, 47, 48, § 130; 18, 25, 57, § 207.
Latin > French (Gaffiot 2016)
intercălārĭus,¹⁴ a, um, c. intercalaris : Liv. 1, 19, 6 ; 37, 59, 2 || intercalarius Cic. Verr. 2, 2, 130 = mensis intercalarius, mois intercalaire.