nak so'a lujvo

x₁ is a gamete of male x₂

In notes:

fetso'a: x₁ is a gamete of female x₂.
esperma: x₁ is semen/sperm fluid/generative substance of male animal x₂
uivda: x₁ is an anthropomorphized sperm/ovum constantly happy by standard x₂; x₁ is an ummy/eggy