to make happy; to please; to delight (e.g. in 怡情悦性 yí​qíng​yuè​xìng)

(bound form) interest; appeal; mood; as in 情趣 qíng​qù

(bound form) to please or delight someone

temperament; disposition; temper (as in 性急 xìng​jí, 任性 rèn​xìng)