Where does “teräväharjainen” come from?

teräväharjainen (Finnish) comes from Finnish harja, from Russian Харитон, from Finnish -nen, from Finnish -inen, from Finnish -uus, from Proto-Finnic -uc — -ness, -hood.

teräväharjainen (Finnish): sharp-crested

Definitions

sharp-crested

Ancestry of “teräväharjainen”, step by step

teräväharjainen traces back through two separate lines of ancestry.

via Finnish harja

Step	Language	Word	Meaning
1	Finnish	harja	brush; mane; crest
2	Russian	Харитон	—
3	Finnish	-nen	Forms diminutives nouns or terms expressing...
4	Finnish	-inen	-like, -ous, -y; -en; Creates adjectives from...
5	Finnish	-uus	Forms nouns from adjectives, expressing a quality
6	Proto-Finnic	-uc	-ness, -hood

via Finnish terävä

Step	Language	Word	Meaning
1	Finnish	terävä	sharp; smart, clever, bright, quick-witted; acute
2	Proto-Finnic	teräbä	sharp
3	Proto-Finnic	terä	blade, edge; ear of corn; grain, corn
4	Proto-Finno-Permic	terä	edge

Every word from Proto-Finnic -uc →Every word from Finnish -inen →Every word from Finnish -uus →