Lewis Short
(adjective) : partĭārĭus, a, um, pars
* That shares with another; shared, that is shared with another (ante- and post-class.): colonus,who pays his rent with a part of the produce,Dig. 19, 2, 25: pecora partiaria pascenda suscipere,so that their increase is shared between the owner and the herdsman,Cod. Just. 2, 3, 8: legatarius,to whom a share of the property is left,Gai. Inst. 2, 254; 257; Ulp. Fragm. 24, 25: res, that is shared with many: honor,App. M. 4, p. 156.
* Abl. adverb.: partiario, on shares: calcem partiario coquendam dare,Cato, R. R. 16; 137; App. M. 9, p. 229 fin.
* Subst.: partĭārĭus, ii, m., a sharer, partaker: AGELLVLI,Inscr. Grut. 1004, 4: erroris,Tert. adv. Marc. 3, 16: sententiae,id. Res. Carn. 2.
Charlton T. Lewis, Charles Short, A Latin Dictionary