Where does “aamiaistunti” come from?

aamiaistunti (Finnish) comes from Finnish aamiainen, from Finnish -iäinen, from Finnish -inen, from Finnish -uus, from Proto-Finnic -uc — -ness, -hood.

aamiaistunti (Finnish): breakfast hour

Definitions

breakfast hour

Ancestry of “aamiaistunti”, step by step

aamiaistunti traces back through two separate lines of ancestry.

via Finnish aamiainen

Step	Language	Word	Meaning
1	Finnish	aamiainen	breakfast
2	Finnish	-iäinen	Front vowel variant of -iainen
3	Finnish	-inen	-like, -ous, -y; -en; Creates adjectives from...
4	Finnish	-uus	Forms nouns from adjectives, expressing a quality
5	Proto-Finnic	-uc	-ness, -hood

via Finnish tunti

Step	Language	Word	Meaning
1	Finnish	tunti	hour; lesson, class
2	Old Swedish	stund	—

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