Where does “Pennocrucium” come from?

Pennocrucium (Latin) comes from Proto-Celtic *krouk-, from Proto-Indo-European krewH- — to cover, heap.

Ancestry of “Pennocrucium”, step by step

Pennocrucium traces back through two separate lines of ancestry.

via Proto-Celtic *krouk-

StepLanguageWordMeaning
1Proto-Celtic*krouk-heap, pile
2Proto-Indo-EuropeankrewH-to cover, heap

via Proto-Celtic kʷennom

StepLanguageWordMeaning
1Proto-Celtickʷennomhead
Every word from Proto-Indo-European krewH- →Every word from Proto-Celtic *krouk- →