Where does “geubersli” come from?

geubersli (Welsh) comes from Welsh persli, from Middle English persely, from Old French peresil, from Latin petroselīnum, from Ancient Greek πετροσέλινον, from Ancient Greek Πέτρος, from Ancient Greek πέτρος — rock, stone, boulder; type of reed.

geubersli (Welsh): fool's parsley (Aethusa cenapium)

Definitions

fool's parsley (Aethusa cenapium)

Ancestry of “geubersli”, step by step

geubersli traces back through two separate lines of ancestry.

via Welsh persli

Step	Language	Word	Meaning
1	Welsh	persli	parsley
2	Middle English	persely	parsley or a similar plant
3	Old French	peresil	—
4	Latin	petroselīnum	rock parsley
5	Ancient Greek	πετροσέλινον	parsley
6	Ancient Greek	Πέτρος	Peter
7	Ancient Greek	πέτρος	rock, stone, boulder; type of reed

via Welsh gau

Step	Language	Word	Meaning
1	Welsh	gau	false, fake; Soft mutation of cau
2	Proto-Celtic	*gāwā	lie, falsehood

Every word from Ancient Greek πέτρος →Every word from Ancient Greek Πέτρος →Every word from Ancient Greek πετροσέλινον →