いびる

(1)annoy persistently; "The children teased the boy because of his stammer"

(2)しつこく悩ませる

(3)treat badly; "This boss abuses his workers"; "She is always stepping on others to get ahead"

(4)下手に扱う

(5)treat cruelly; "The children tormented the stuttering teacher"

(6)残酷に扱う

(7)torment emotionally or mentally

(8)感情的または精神的に苦しめる