This adjective is attested only in Anglo-Norman, and is apparently a derivative of sovent¹ (from Latin subinde), similar to Continental French souvendier². Formally, the word overlaps with the subvenire word family (cf. the adjective sovenier 1), and arguably some of its attestations may also be interpreted as such (e.g. the editor of S Edw¹ translates it as ‘qui se souvient’). Furthermore, as in Mirour Egl, the word seems to have caused confusion with soverein.