Where does “anti-natalism” come from?

anti-natalism (English) comes from English natalism, from English Natal, from Portuguese natal, from Old Portuguese natal, from Latin nātālis, from Latin nātus, from Latin gnātus, from Proto-Italic gnātos — to produce, to beget, to give birth.

Ancestry of “anti-natalism”, step by step

anti-natalism traces back through two separate lines of ancestry.

via English natalism

StepLanguageWordMeaning
1EnglishnatalismPronatalism; an ideology in favour of...
2EnglishNatalNatal, region in South Africa
3Portuguesenatalnatal; native
4Old Portuguesenatal
5Latinnātālisnatal (of one's birth)
6Latinnātusborn, arisen, made
7Latingnātus
8Proto-Italicgnātosborn
9Proto-Indo-Europeanǵn̥h₁tósbegotten, produced
10Proto-Indo-Europeanǵenh₁-to produce, to beget, to give birth

via English anti

StepLanguageWordMeaning
1EnglishantiOpposed to something; That has a torsion angle...
2Englishanti-Against, hostile to; Contrasting with the norm;...
3Ancient Greekἀντι-anti-, against; like, reminiscent of
4Ancient Greekᾰ̓ντῐ́opposite
Every word from Proto-Indo-European ǵenh₁-Every word from Proto-Indo-European ǵn̥h₁tósEvery word from Proto-Italic gnātos