fiendish, beபேயாகுpēyāku(peeyaahu)(3b intr)be or turn into a fiend; be wicked, cruel, vicious, evil, malevolent, villainous; be brutal, savage, barbaric, barbarous, inhuman, murderous, ruthless, merciless
Usage:
தேவதை போல இருந்தவள் இப்பொழுது பேயாகிவிட்டாள்tēvatai pōla iruntavaḷ ippoḻutu pēyākiviṭṭāḷ
deevade maadiri irundava ippa peeyaayiṭṭaa
The girl who was like an angel has now become fiendish.