Nouns

(n)peta domesticated animal kept for companionship or amusement
(n)darling, favorite, favourite, pet, dearie, deary, duckya special loved one
(n)peta fit of petulance or sulkiness (especially at what is felt to be a slight)

Verbs

(v)petstroke or caress gently“pet the lamb”
(v)petstroke or caress in an erotic manner, as during lovemaking

Adjectives

(s)favored, favorite, favourite, best-loved, pet, preferred, preferent, favouredpreferred above all others and treated with partiality“the favored child”