Where does “kukacom” come from?

kukacom (Hungarian) comes from Hungarian kukac, from Serbo-Croatian kúkac, from Serbo-Croatian kȕka, from Proto-Slavic kuka, from Proto-Balto-Slavic kaukāˀ, from Proto-Indo-European klHk(ᵂ)-(n)-.

Ancestry of “kukacom”, step by step

Step	Language	Word	Meaning
1	Hungarian	kukac	maggot; at sign, at; willy, wee-wee
2	Serbo-Croatian	kúkac	insect
3	Serbo-Croatian	kȕka	hook
4	Proto-Slavic	kuka	hook; goblin
5	Proto-Balto-Slavic	kaukāˀ	—
6	Proto-Indo-European	klHk(ᵂ)-(n)-	—

Every word from Proto-Indo-European klHk(ᵂ)-(n)- →Every word from Proto-Balto-Slavic kaukāˀ →Every word from Proto-Slavic kuka →