害す - JP-EN Jisho

害(がい)す

Godan verb with 'su' endingsu verb - precursor to the modern surutransitive verb

to injure; to damage; to harm; to hurt

See also:

Godan verb with 'su' endingsu verb - precursor to the modern surutransitive verb

to kill

Godan verb with 'su' endingsu verb - precursor to the modern surutransitive verb

to hinder; to obstruct