Again, as is the case with 'dexter', the form of the word will depend upon the referent. It will be feminine plural ('laevae' or 'sinistrae') or neuter singular ('laevum' or 'sinistrum'), depending upon whether it refers to the body parts ('partes corporis') or to the side ('latus').

The form of adjectives in inflected languages like Latin and Greek cannot be separated from the substantives which they modify. In other words, it does not suffice simply to supply the dictionary headword without consideration of the case, gender, and number of the substantives which are their referents, as can be done in English. And the referents must be the Latin or Greek substantives, not their English equivilents.