Were the Jutes, Angles, Saxons (and Frysians?) able to understand each other around the times of the British 'conquest'/settlement?

by len_moria

Is there even a way to know about this?

These tribes all come from roughly the same area. Were they linguistically and culturally part of a bigger unit?

shotpun

Fantastic question, but I recommend also posting it in /r/linguistics where people have specific expertise in the history of language.