berbériser

A narrow linguistics/anthropology term meaning to give something a Berber (Amazigh) character or form — for instance, adapting a loanword into Berber phonology, or describing a region's culture becoming more Berber-influenced. You'll only meet it in academic writing on North African languages and history.

• Le mot a été berbérisé en entrant dans la langue locale. — The word was Berberized as it entered the local language.
• Certains historiens décrivent comment la région s'est berbérisée au fil des siècles. — Some historians describe how the region became more Berberized over the centuries.
• Ce suffixe berbérise systématiquement les emprunts arabes. — This suffix systematically Berberizes Arabic loanwords.

This is specialist academic vocabulary — don't expect it in general conversation, even among French speakers in North Africa.