FROM STRONG’S HEBREW DICTIONARY (1890)

Strong’s Hebrew Dictionary (1890) — public domain, printed whole.

bakar baw-kar' — a primitive root; properly, to burst the womb, i.e. (causatively) bear or make early fruit (of woman or tree); also (as denominative from 1061) to give the birthright:--make firstborn, be firstling, bring forth first child (new fruit).

see HEBREW for 01061