untether

un teth er |ˌənˈteT͟Hər ənˈtɛðər | ▶verb [ with obj. ] release or free from a tether: I reached the horses and untethered them.

untether

un |tether |ʌnˈtɛðə | ▶verb [ with obj. ] release or free from a tether: I reached the horses and untethered them.