As the word is unique to this attestation in Anglo-Norman, alternative interpretations or readings may be suggested, such as opere(r)s (not otherwise attested in Anglo-Norman, but see DMF opère¹, ‘celui qui oeuvre, ouvrier), oper[at]ers (not otherwise attested in Anglo-Norman, but see DMF opérateur, ‘exécutant, celui qui agit, acteur’), or a deviant spelling of ovrier.