Lat. Which [does or requires] nothing in vain. Which requires nothing to be done, that is, to no purpose. 2 Kent, Comm. 53. Qnss non neri dobent, facta Talent. Things which ought not to be done are held valid when they have been done Tray. Latin: Max. 484. Qnss non valeant singula, juncta ju-Tant. Things which do not avail when separate, when joined avail. 3 Bulst’ 132; Broom, Max. 588.