pejorative (adj.)
"depreciative, disparaging," 1888, from French péjoratif, from Late Latin peiorat-, past participle stem of peiorare "make worse," from Latin peior "worse," perhaps originally "stumbling," from PIE *ped-yos-, suffixed (comparative) form of *ped- "to walk, stumble, impair," from root *ped- "foot." As a noun from 1882. English had a verb pejorate "to worsen" from 1640s.