Latin

Neapolitan is a Southern Italo-Romance language that evolved from Vulgar Latin in parallel with Italian, not as a dialect derived from Italian itself.

Sicilian is an Extreme Southern Italian Romance language that developed from the Vulgar Latin introduced to Sicily under Roman rule, a sister development to Italian rather than a derivation from it.

Venetian evolved from Vulgar Latin as a sister language of Italian, not as a dialect of Italian.

This source names Latin directly: "everyday vocabulary is of French or Latin origin."

This source names Latin directly: "and from the Etruscans to the Latin alphabet, and passed north into the medieval Balkans and Eastern Europe through the Byzantine Greek uncial script adapted by ninth-century missionaries..."

This source names Latin directly: "than strung letter by letter as in the Latin alphabet."

This source names Latin directly: "language of Poland, written in the Latin alphabet with a set of diacritics that mark sounds the plain Latin letters do not cover."

This source names Latin directly: "The split between Cyrillic-writing and Latin-writing Slavic languages runs along confessional lines rather than branch lines: Orthodox-majority Slavic languages generally adopted Cyrillic and..."

This source names Spanish directly: "the ancestor of the Romance languages, Spanish, French, Italian, Portuguese, Romanian and others."

This source names Latin directly: "Romance language descended from Vulgar Latin as spoken on the Iberian peninsula, spread worldwide from the sixteenth century onward by Spanish colonization and today the official language of twenty..."

This source names Latin directly: "that Sanskrit bears to Greek and Latin a resemblance too strong to be accidental, in both grammatical structure and root vocabulary, and proposed that all three, along with Gothic, Celtic and Old..."

This source names Latin directly: "His study of Sanskrit alongside his existing knowledge of Greek and Latin led him to argue, in a 1786 address to the Asiatic Society of Bengal, that the three languages shared a common ancestor no..."