Does the name "Dujaynah" mean familiarity and good companionship, and is it Arabic, and is it permissible to name someone with it?

There is no harm in naming with "Dujainah," as it is an ancient Arabic name, a diminutive of the word "Dajin." It has multiple meanings, including: staying at home, good social interaction, and familiarity. It has been mentioned in Arabic dictionaries such as "Lisan al-Arab" and "Taj al-Arus" that Dujainah is a woman's name.