frustra

frūstrā adv.

2 FER-, in deception, in error : Ne me in laetitiam frustra conicias, T.: uti illi frustra sint, S.: frustra habitus, disappointed , Ta.— Without effect, to no purpose, uselessly, in vain, for nothing : auxilium suum implorari: o frustra meritorum oblite meorum, O.: tantum laborem sumere, Cs.: id inceptum Volscis fuit, L.: legati discessere, disappointed , S.: cruento Marte carebimus, H.: fortissima Pectora, V.: Expers belli, O.: Frustra, nam, etc., H.— Without reason, causelessly, groundlessly : te non frustra scribere solere: disputatio ne frustra haberetur: conterrita, Ta.