rāḥav רָחַב ‘to enlarge’ (Hebrew)

Etymology^?: a primitive root

rāḥav v
1) to be or grow wide, be or grow large
 1a) (Qal) to be widened, be enlarged
 1b) (Niphal) broad or roomy pasture (participle)
 1c) (Hiphil)
  1c1) to make large
  1c2) to enlarge