antiblue is a modern transparent compound from Greek-derived prefix anti- ('against, opposed to') + English blue (from Old French bleu, of Germanic origin). 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 adjective sense is "opposed to or counteracting the color blue, as a filtering tint", which keeps the etymology connected to the word's present dictionary value rather than treating it as a merely historical label. The principal historical forms in the chain include Ancient Greek antí, which anchor the explanation in named linguistic material.