Where does “titty fuck” come from?

titty fuck (English) comes from English titty, from English tit, from Middle English tit, from Old English tit, from Old English titt, from Proto-Germanic titt-, from Proto-Indo-European tata-, from Sanskrit तथा — fluidity, slime, poison; poison; poison; slime;...

Ancestry of “titty fuck”, step by step

titty fuck traces back through two separate lines of ancestry.

via English titty

StepLanguageWordMeaning
1Englishtittya breast; a nipple; a kitten
2EnglishtitA mammary gland, teat; A woman's breast; An...
3Middle Englishtit
4Old Englishtit
5Old Englishtitttit, teat, breast; nipple
6Proto-Germanictitt-teat; nipple; breast
7Proto-Indo-Europeantata-father; parent; nipple
8Sanskritतथाin that manner
9Sanskritयथाin which manner or way, according as, as, like
10Proto-Indo-IranianHyátʰaHin which way, as, in which manner
11Proto-Indo-Europeanyósthat, who, which
12Proto-Finnicwiša
13Proto-Indo-Iranianwišáspoison, venom
14Proto-Indo-Europeanwisósfluidity, slime, poison; poison; poison; slime;...

via English fuck

StepLanguageWordMeaning
1EnglishfuckTo have sexual intercourse, to copulate; To have...
2Middle Englishfukkento fuck; to beat, strike
3Old Norsefukka
4Proto-Germanicfukkōnąto blow, gust; to strike, assail; to copulate
5Proto-Indo-Europeanpewǵ-to punch, fist-fight; to prick, poke, stab
Every word from Proto-Indo-European wisós