How did Faliscan relate to Latin?

Faliscan was a language closely related to Latin, and together they form the Latin-Faliscan group within the Italic languages family.123

Historically, Faliscan was spoken by the Falisci in a region of central Italy northwest of the Tiber River. It is often considered a sister language or a closely related dialect to Latin. While Latin eventually became the dominant language of the region—particularly after the Roman destruction of the Faliscan capital, Falerii, in 241 BCE—Faliscan persisted for some time before being displaced.1243

Our understanding of Faliscan is limited to a small collection of inscriptions, which were written using an alphabet derived from Etruscan, distinguishing it from the Latin alphabet. Unlike the Osco-Umbrian group, which was more distantly related to Latin, Faliscan shares a direct and intimate linguistic connection with the Roman dialect.1243