From an unused root probably meaning to eject; the fetus (as finally expelled) -- that cometh of, increase.
H7698. sheger
שֶׁ֫גֶּר noun [feminine AlbrZAW xvi (1896), 70] offspring, young of beasts (שגר id. Ecclus 40:19; compare WeSkizzen iii. 170); — construct ׳שׁ; — שׁ ׳כָּלמֶּֿטֶר בְּהֵמָה Exodus 13:12 (J; ׳כָּלטֿ רֶחֶם precedes); also אֲלָפֶיךָ שְׁגַר Deuteronomy 7:13; 28:4, 18, 51 (all "" צאֹנֶ֑ךָ עַשְׁתְּרֹת).
שַׁד, II. שֹׁד breast, see שׁדה.