What does francogallus mean in Latin?

francogallus, a adjective, means “French”.

How do you pronounce francogallus?

In classical Latin, [fraŋ.kɔˈɡal.lʊs]; in ecclesiastical (church) Latin, [fraŋ.koˈɡal.lus].

adjectivefirst/second-declension adjective

francogallus (feminine francogalla, neuter francogallum)

Classical[fraŋ.kɔˈɡal.lʊs]Ecclesiastical[fraŋ.koˈɡal.lus]

singular
form	masculine	feminine	neuter
nominative	francogallus	francogalla	francogallum
genitive	francogallī	francogallae	francogallī
dative	francogallō	francogallae	francogallō
accusative	francogallum	francogallam	francogallum
ablative	francogallō	francogallā	francogallō
vocative	francogalle	francogalla	francogallum

plural
form	masculine	feminine	neuter
nominative	francogallī	francogallae	francogalla
genitive	francogallōrum	francogallārum	francogallōrum
dative	francogallīs	francogallīs	francogallīs
accusative	francogallōs	francogallās	francogalla
ablative	francogallīs	francogallīs	francogallīs
vocative	francogallī	francogallae	francogalla

francus (“Frankish”) + Gallus (“Gallic; Gaul”)