Anakims = the descendants of the second incursion of evil angels (Gen_6:4) through one, Anak. See App-23and App-23, and notes on Num_13:22 and Deu_1:28.
mountains = hill country.
from Anab. Some codices, with two early printed editions, Septuagint, Syriac, and Vulgate, read "and from Anab".