Where does “כתאוא” come from?

כתאוא (Lishana Deni) comes from Aramaic כְּתַב — to write.

כתאוא (Lishana Deni): to write; letter

Definitions

Step	Language	Word	Meaning
1	Aramaic	כְּתַב	to write

כתאוא — Etymology, Origin & Word History | Etymology Explorer