belligeror
Could not find belligerandum in Logeion dictionaries.
belligerandum Verb: present passive gerundive singular, Verb: present passive gerundive plural, Verb: present passive gerundive plural, Verb: present active gerund singular, Verb: present passive gerundive singular, Verb: present passive gerundive singular, Verb: present passive gerundive singular of belligeror
belligĕror, āri, v. belligero init.
bellĭgĕror, ātus sum, ārī, dép., Hyg. Fab. 274 ; c. belligero.