'aviso' originates from Spanish and Portuguese, specifically the word 'aviso', ultimately from Late Latin 'advisum' (from the verb 'advisare'/'advisum') meaning 'a consideration' or 'advice/notice'.

'aviso' changed from Late Latin 'advisum' into Old Spanish/Portuguese 'aviso' meaning 'notice' or 'warning'; in the naval context French and Iberian navies used 'aviso' for small dispatch boats, and that specialized nautical sense was borrowed into modern English nautical usage.

Initially it meant 'a warning or notice' in Iberian languages, but over time a specialized naval sense developed meaning 'a small dispatch boat', and that specialized sense entered English; both senses (notice; small naval vessel) are recorded.