What is the etymology of the word khamr?

Imām Ibn al-Jawzī (d. 597/1201) summarized the scholars' opinions in his book "Zād al-Masīr" as follows:

1. It is called "khamr" because it "mixes" (tukhāmir) with the mind.
2. It is called "khamr" because it "covers" (tukhammir) the mind.
3. It is called "khamr" because it is covered (tukhammar).

All three opinions were mentioned by Muḥammad ibn al-Qāsim (Ibn al-Anbārī). Al-Zajjāj states, "Khamr in the language is that which covers the mind." It is said, "So-and-so entered into the khumār of the people," meaning: a large group in which he is concealed. The "khimār" of a woman is her head covering, named as such because it covers.