Where does “wielgachny” come from?

wielgachny (Polish) comes from Polish wielki, from Old Polish wielki, from Proto-Slavic velikъ, from Proto-Slavic -ikъ — *nožь → *nožikъ; *větrъ → *větrikъ; *listъ →...

Ancestry of “wielgachny”, step by step

Step	Language	Word	Meaning
1	Polish	wielki	big, large; having large physical dimensions;...
2	Old Polish	wielki	great, large
3	Proto-Slavic	velikъ	great
4	Proto-Slavic	-ikъ	nožь → nožikъ; větrъ → větrikъ; *listъ →...

Every word from Proto-Slavic -ikъ →Every word from Proto-Slavic velikъ →Every word from Old Polish wielki →