adsertor
From LSJ
Πάντα οὖν ὅσα ἐὰν θέλητε ἵνα ποιῶσιν ὑμῖν οἱ ἄνθρωποι, οὕτως καὶ ὑμεῖς ποιεῖτε αὐτοῖς· οὗτος γάρ ἐστιν ὁ νόμος καὶ οἱ προφῆται → Therefore as many things as you would like people to do for you, do also the same for them: that is the Torah, that is the prophets! (Matthew 7:12)
Latin > English
adsertor adsertoris N M :: one asserting status of another; restorer of liberty, protector, champion
Latin > French (Gaffiot 2016)
adsertŏr¹³ (ass-), ōris, m.,
1 celui qui affirme devant le juge qu’une personne est de condition libre, ou inversement, qu’elle est esclave : Don. Ad. 199 ; Liv. 3, 44, 8 ; 3, 45, 3 ; 3, 47, 8 ; 3, 58, 10
2 [en général] défenseur : Sen. Rhet. Contr. 9, 1, 4 ; Plin. 20, 160 || libérateur : Tac. H. 2, 61 ; Suet. Cæs. 80.