Where does “fuckskull” come from?

fuckskull (English) comes from English skull, from Middle English sculle, from Old Norse skalli, from Proto-Germanic skaljō, from Proto-Indo-European (s)kelH-, from Proto-Indo-European (s)kel- — to bend, crook; bent, crooked; leg, heel, knee,...

Ancestry of “fuckskull”, step by step

fuckskull traces back through two separate lines of ancestry.

via English skull

StepLanguageWordMeaning
1EnglishskullThe main bones of the head considered as a unit;...
2Middle Englishscullea type of oar
3Old Norseskallia bald head; bald head, skull
4Proto-Germanicskaljōshell; husk; rind; peel
5Proto-Indo-European(s)kelH-to cut; to split, to separate
6Proto-Indo-European(s)kel-to bend, crook; bent, crooked; leg, heel, knee,...

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 (s)kel-Every word from Proto-Indo-European (s)kelH-Every word from Proto-Germanic skaljō