Ma'anar ƙamus na kalmar "watsewa" shine aikin cire lauya daga aikin shari'a, yawanci sakamakon rashin da'a ko haramtacciyar hanya. Wani nau'i ne na ƙwararrun horo wanda ya ƙunshi soke lasisin lauya don yin doka, ta yadda za a hana su bayyana a kotu ko ba da shawarar doka ga abokan ciniki. Ana daukar watsewar hukunci mafi tsanani da za a iya yankewa lauya kuma galibi yana faruwa ne sakamakon manyan laifuffuka kamar zamba, almubazzaranci, ko wasu halaye na rashin da'a ko aikata laifuka.