Prosum, es, fui, desse. Ter. To do good to: to prosite: to be profitable: to bee wholesome: to bee of vertue and strength against: to aide: to helpe.Nihil tibi litteræ meæ proderunt. Cice. Metuo ne artisicium tuum tibi patum prosit.Cic.Aere multum profuit ei Bithynia. Catul. Aequè prodest pauperibus, locupletibus aquè. Hora. It helpeth, &c.Constantia multum prodest in amore. Proper. Constancie doth much preuaile in loue.In commune prodesse. Quint. Id mirum quantum profuit ad concordiam ciuitatis. Li. It is a wonder howe muche that thing did helpe or preuaile to make concorde in the citie.Contra araneorum & scorpionum ictus prodest hæc herba. Plin. This hearbe is wholesome or good, &c.