bissextus
From LSJ
Καλὸν δὲ καὶ γέροντι μανθάνειν σοφά → Addiscere aliquid digna res etiam seni → Auch einem Greis ist etwas Weises lernen Zier
Latin > English (Lewis & Short)
bissextus: v. bisextus.
Latin > English
bissextus bissexta, bissextum ADJ :: leap (year); (two "sixth" days before first/calends of March)