aviso comes from Spanish aviso ('notice, warning, dispatch boat'), from avisar ('to inform'), ultimately from Latin ad- + visum ('seen'), related to videre ('to see'). Morphologically, the word is transparent as a compound: its parts remain visible in the modern spelling, while the older history of those parts supplies the deeper ancestry. In modern use, the noun sense is "a dispatch boat, or an official notice or advice", which keeps the etymology connected to the word's present dictionary value rather than treating it as a merely historical label. The wider word family includes related English forms such as advice, advise, showing how the same base continues to support neighboring English vocabulary. The principal historical forms in the chain include Spanish aviso, Latin videre, which anchor the explanation in named linguistic material.