Strong's Hebrew #1062
mib·bə·ḵō·rō·wṯ

mib·bə·ḵō·rō·wṯ — 1 Occurrence

Genesis 4:4
HEB: גַם־ ה֛וּא מִבְּכֹר֥וֹת צֹאנ֖וֹ וּמֵֽחֶלְבֵהֶ֑ן
KJV: also brought of the firstlings of his flock
INT: his part he of the firstlings of his flock their fat