Where does “decadely” come from?

decadely (English) comes from English decade, from Middle English decade, from Middle French decade, from Latin decās, from Ancient Greek δεκάς, from Ancient Greek -ᾰ́ς, from Proto-Indo-European -ónts, from Hungarian önt — sound, voice.

decadely (English): Taking place every decade, or measured in decades

Definitions

Taking place every decade, or measured in decades

Ancestry of “decadely”, step by step

decadely traces back through two separate lines of ancestry.

via English decade

Step	Language	Word	Meaning
1	English	decade	A group, set, or series of ten, particularly
2	Middle English	decade	—
3	Middle French	decade	a series of 10 books
4	Latin	decās	a decade (period of ten years)
5	Ancient Greek	δεκάς	the number ten; a group of ten, decade
6	Ancient Greek	-ᾰ́ς	group of
7	Proto-Indo-European	-ónts	Derives nouns denoting body parts
8	Hungarian	önt	to pour; to cast; accusative singular of ön
9	Hungarian	ön	you
10	Hungarian	ön-	self-
11	Turkish	ön	front
12	Ottoman Turkish	اوك	voice (of human or animal); sound
13	Proto-Turkic	ǖn	sound, voice

via English ly

Step	Language	Word	Meaning
1	English	ly	Abbreviation of light-year
2	Vietnamese	ly	Alternative spelling of li

Every word from Proto-Turkic ǖn →Every word from Ancient Greek -ᾰ́ς →Every word from Hungarian ön- →