D / dēfensĭbĭlis
adjective

dēfensĭbĭlis

neut. dēfensĭbĭle
easily defended; defensibly
easily defended: murus, Cassiod. de Anim. 2.— Hence, adv.: dēfensĭbĭlĭter, defensibly, Cassiod. in Psa. 79, 12.