Dictionary Definition:
upa-√bhū P. (pf. Pot. 2, sg. -babhūyās
• aor. Subj. 2. sg. -bhuvas) to come near to, approach RV. x, 183, 2
• to help, assist RV. i, 138, 4: Intens. -bubhūṣati, to wish to help MBh. xii, 3514