A / argūmentālis
adjective hapax

argūmentālis

neut. argūmentāle
containing proof; by way of proof
containing proof: narratio, Ascon. ap. Cic. Div. in Caecil. 1.—Adv.: argūmentālĭter, by way of proof, Aggen. Urb. Com. ap. Front. p. 64 Goes.