Frankish

English Wikipedia has an article on:

Frankish

From Frank +‎ -ish. Compare Middle English Frenkisch, Frenkis (“Frankish, French”), Old English Frencisc (“Frankish, French”). More at French.

Frankish (comparative more Frankish, superlative most Frankish)

of or pertaining to the Franks

Arabic: إِفْرَنْجِيّ (ʔifranjiyy)
Armenian: ֆրանկական (hy) (frankakan)
Breton: frank (br)
Catalan: franc (ca)
Danish: frankisk
Dutch: Frankisch (nl)
French: francique (fr), franconien (fr), franc (fr)
Georgian: ფრანკული (pranḳuli)
German: fränkisch (de)
Hungarian: frank (hu)
Italian: franco (it), francico (it)
Marathi: फ्रँकिश (phrĕṅkiś)
Norwegian:
Bokmål: frankisk (no)

Nynorsk: frankisk
Old Church Slavonic: франьчьскъ (franĭčĭskŭ), фрачьскъ (fračĭskŭ), фрѧжьскъ (fręžĭskŭ), фрѧѕьскъ (frędzĭskŭ)
Polish: frankijski (pl)
Portuguese: franco (pt), frâncico (pt)
Russian: франкский (ru) (frankskij)
Swedish: frankisk (sv)
Welsh: Ffrancaidd

in or of the language of the Franks

Frankish

The language of the Franks, an ancient West Germanic language, ancestral to Dutch.

the language of the Franks

English