Old Testament Hebrew Lexical Dictionary
Strong's #01060 - בְּכוֹר
cf1) erfkb (בכורה BKWRH) - I. Firstborn:Of the flock or herd. II. Birthright:The rights of the firstborn son (see Deuteronomy 21:17) . III. Firstfruit:KJV (15): birthright, firstling, firstborn - Strongs: H1062 (בְּכוֹרָה)
Jeff Brenner, Ancient Hebrew Research Center Used by permission of the author.
בְּכוֹר m. (from the root בָּכַר), first-born, whether of men, Genesis 25:13, 35:23 or of animals, Exodus 11:5, 12:29 13:15. In the former case, it refers to the eldest son of a father. Genesis 49:3. As the eldest son, in many things, took precedence of the rest (see בְּכוֹרָה No. 2 )
(2) metaph. it is used of any thing which is chief, first of its kind. Job 18:13, בְּכוֹר מָוֶת “the first-born of death,” i.e. “the greatest of deadly maladies.” For disease may fitly be called by a Hebraism, “the son of death,” as being its precursor and attendant; as in Arabic بنات المنية daughters of fate, or of death, used of fatal fevers; and the most terrible death is here figuratively called the first-born of brethren. Isaiah 14:30, בְּכוֹרֵי דַלִּים “the first-born of the poor,” the poorest; as if the chief amongst the sons of the poor, or the first-born of this wretched age; see my Comment. on the passage.
In fem. of an eldest daughter is used בְּכִירָה which see.
the Sixth Week after Easter