Where does “palu” come from?

palu (Anglo-Norman) comes from Old French palu, from Latin pālus, from Proto-Italic pākslos, from Proto-Indo-European peh₂ǵ-slos, from Proto-Indo-European peh₂ǵ- — to attach.

Ancestry of “palu”, step by step

Step	Language	Word	Meaning
1	Old French	palu	—
2	Latin	pālus	—
3	Proto-Italic	pākslos	—
4	Proto-Indo-European	peh₂ǵ-slos	—
5	Proto-Indo-European	peh₂ǵ-	to attach

Every word from Proto-Indo-European peh₂ǵ- →

palu — Etymology, Origin & Word History | Etymology Explorer