Where does “puskikko” come from?

puskikko (Finnish) comes from Finnish -ikko, from Proto-Finnic -ikko, from Proto-Finnic -i- — Plural number marker in other cases than the nominative (and optionally the genitive).

puskikko (Finnish): thicket dense, but generally small, growth of shrubs or bushes

Definitions

thicket dense, but generally small, growth of shrubs or bushes

Ancestry of “puskikko”, step by step

Step	Language	Word	Meaning
1	Finnish	-ikko	Forms nouns for groups of a particular number,...
2	Proto-Finnic	-ikko	Forms nouns indicating a group of things
3	Proto-Finnic	-i-	Plural number marker in other cases than the nominative (and optionally the genitive)

Every word from Proto-Finnic -i- →Every word from Finnish -ikko →Every word from Proto-Finnic -ikko →