Where does “kyökkipsykologia” come from?

kyökkipsykologia (Finnish) comes from Finnish kyökki, from Swedish kök, from Old Swedish kökia, from Middle Low German kôke, from Middle Low German kȫkene, from Old Saxon kukina, from Proto-West Germanic kukinā, from Latin cocīna.

Ancestry of “kyökkipsykologia”, step by step

kyökkipsykologia traces back through two separate lines of ancestry.

via Finnish kyökki

Step	Language	Word	Meaning
1	Finnish	kyökki	kitchen
2	Swedish	kök	kitchen; a room; cuisine
3	Old Swedish	kökia	—
4	Middle Low German	kôke	kitchen
5	Middle Low German	kȫkene	kitchen
6	Old Saxon	kukina	—
7	Proto-West Germanic	kukinā	kitchen
8	Latin	cocīna	kitchen
9	Latin	coquīna	cooking; art of cookery
10	Latin	coquīnus	cook's
11	Latin	coquus	A cook; person who makes food
12	Latin	coquō	to cook; prepare food
13	English	Cook	A placename
14	German	kochen	to cook, to prepare food; to boil; to be stirred...
15	Middle High German	kochen	to cook
16	Old High German	kohhōn	to cook
17	Proto-Germanic	kukōną	to cook
18	Latin	coquere	second-person singular future passive indicative...
19	Proto-Italic	kʷekʷō	to cook
20	Proto-Indo-European	pékʷeti	to be cooking; to ripen
21	Proto-Indo-European	pekʷ-	to cook; to ripen
22	Proto-Indo-European	h₃-ép-kʷ-	—

via Finnish psykologia

Step	Language	Word	Meaning
1	Finnish	psykologia	psychology; Partitive singular form of...
2	Latin	psychologia	—
3	Latin	-logia	-logy; the study of
4	Ancient Greek	-λογία	Base for nouns denoting the study of something,...
5	Ancient Greek	λόγος	That which is said: word, sentence, speech,...
6	Ancient Greek	λέγω	I put in order, arrange, gather; I choose, count,...
7	Proto-Indo-European	leǵ-	to gather, collect, with derivatives meaning to...

Every word from Proto-Indo-European h₃-ép-kʷ- →Every word from Proto-Indo-European pekʷ- →Every word from Proto-Indo-European pékʷeti →