Kentish vs Anglo-Saxon language

Kentish and Anglo-Saxon language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kentish	Yes	No	No	No
Anglo-Saxon language	Yes	No	No	No

As nouns, Anglo-Saxon language is a hypernym of Kentish; that is, Anglo-Saxon language is a word with a broader meaning than Kentish:

Kentish: a southern dialect of Old English, spoken in the Anglo-Saxon kingdom of Kent
Anglo-Saxon language: English prior to about 1100

Other hypernyms of Kentish include Anglo-Saxon, Old English.

Kentish (noun)	Anglo-Saxon language (noun)
a southern dialect of Old English, spoken in the Anglo-Saxon kingdom of Kent	English prior to about 1100
a dialect of Middle English, originally spoken over the whole southeast part of England, including London and Essex