Where does “авизирам” come from?

авизирам (Bulgarian) comes from French aviser, from Old French aviser, from Old French avis, from Old French a, from Latin A, from Etruscan 𐌀, from Ancient Greek ᾱ̔, from Phoenician 𐤀.

авизирам (Bulgarian): to notify to inform someone by letter of banking or commercial transactions, such as the issuance of a policy or the transfer of funds