contionarius
From LSJ
Latin > English (Lewis & Short)
contĭōnārĭus: a, um, adj. id.,
I of or suited to an assembly of the people (very rare): populus, Cic. Q. Fr. 2, 3, 4: oratio, Amm. 27, 6, 5: tibia, Gell. 1, 11, 10: fistula, id. 1, 11, 10 in lemm.
Latin > French (Gaffiot 2016)
cōntĭōnārĭus,¹⁶ a, um (contio), relatif aux assemblées du peuple : contionarius ille populus Cic. Q. 2, 3, 4, ce peuple qui constitue les assemblées ; oratio contionaria Amm. 27, 6, 5, discours pour les assemblées des soldats].