Es*soin", v. t. [OF. essoinier, essoignier, essonier, LL. essoniare, exoniare. See Essoin, n.] (Eng. Law) To excuse for nonappearance in court. "I 'll not essoin thee." Quarles.

{ Es*soin" (?) or Es*soign }, n. [OF. essoine, essoigne, F. exoine, L. essonia, exonia; pref. ex- (L. ex from) + sunnis, sunnia, sonia, hindrance, excuse. Cf. Icel. syn refusal, synja to deny, refuse, Goth. sunja truth, sunjōn to justify, OS. sunnea impediment, OHG. sunna.] 1. (Eng. Law) An excuse for not appearing in court at the return of process; the allegation of an excuse to the court.

2. Excuse; exemption. [Obs.]

From every work he challenged essoin.

Essoin day (Eng. Law), the first general return day of the term, on which the court sits to receive essoins. Blackstone.