So courteous conge both did giue and take, With right hands plighted, pledges of good will.

[…]but the innating matter works not upon the dull matter, as upon a new material, for the innate matter is mixt with the dull part of matter[…]

monogeny — the production of only male (“arrhenogeny”) or female (“thelygeny”) offspring.

Urogenitals of Primitive Fishes (Selachii).