Bonito

Bonitos are a tribe of medium-sized, ray-finned predatory fish in the family Scombridae – a family it shares with the mackerel, tuna, and Spanish mackerel tribes, and also the butterfly kingfish. Also called the tribe Sardini, it consists of eight species across four genera; three of those four genera are monotypic, having a single species each. Bonitos closely resemble the skipjack tuna, which is often called a bonito, especially in Japanese contexts. The fish's name comes from the Portuguese and Spanish bonito , identical to the adjective meaning 'pretty'. However, the noun referring to the fish seems to come from the low and medieval Latin form boniton, a word with a strange structure and an obscure origin, related to the word byza, a possible borrowing from the Greek βῦζα, 'owl'.

Source: Wikipedia