enmity

As nouns the difference between enmity and foehood

is that enmity is the quality of being an enemy; hostile or unfriendly disposition while foehood is enmity.

As nouns the difference between enmity and unlove

is that enmity is the quality of being an enemy; hostile or unfriendly disposition while unlove is the lack, absence, or omission of love; lovelessness; enmity; neglect; hate.

As a verb unlove is

to lose one's love (for someone or something).