Firstling
Firstling (fẽrst"ling) , noun
[First + -ling.]
1.
The first produce or offspring; -- said of animals, especially domestic animals; as, the firstlings of his flock. — Milton
2.
The thing first thought or done.
The very firstlings of my heart shall be
The firstlings of my hand.
Firstling , adjective
Firstborn.
All the firstling males.