Obs. rare. Used by Chaucer in the following passage to represent L. sui compos, ‘master of itself, in possession of itself.’
1391. Chaucer, Boeth., V. vi. 172. And it byhoueþ by necessite þat þilke þinge [eternity] be alwey present to hym self and compotent [idque necesse est et sui compos praesens sibi semper adsistere].
