Where does “quaternionically” come from?

quaternionically (English) comes from English quaternionic, from English quaternion, from Middle English quaternioun, from Latin quaterniō, from Latin quaternī, from Latin quaternus, from Latin quater, from Latin quattŭor — and.

quaternionically (English): In terms of quaternions

Definitions

In terms of quaternions

Ancestry of “quaternionically”, step by step

quaternionically traces back through two separate lines of ancestry.

via English quaternionic

Step	Language	Word	Meaning
1	English	quaternionic	Of or pertaining to a quaternion
2	English	quaternion	A group or set of four people or things; A word...
3	Middle English	quaternioun	An ancient Roman leader of a squad of four soldiers
4	Latin	quaterniō	The number four (e.g. on a dice)
5	Latin	quaternī	—
6	Latin	quaternus	four each; four at a time
7	Latin	quater	four times
8	Latin	quattŭor	four; 4
9	Portuguese	quarto	ordinal form of quatro; fourth; quarter; fourth;...
10	Old Portuguese	quarto	quarter
11	Latin	quārtus	fourth
12	Proto-Indo-European	kʷeturtos	—
13	Proto-Indo-European	kʷetwóres	four
14	Proto-Indo-European	kʷe-	and

via English ally

Step	Language	Word	Meaning
1	English	ally	To unite, or form a connection between, as...
2	Middle English	allie	The state of having marital or family relations...
3	Middle English	allien	To ally; to make a pact or confederacy; To marry...
4	Old French	alier	to unite; to join together
5	Latin	alligō	to bind to, up or around something, tie, fetter, fasten; bandage
6	Latin	ad-	to; usually prefixed to verbs, in which cases it...
7	Latin	īn-	un-, non-, not
8	Latin	în	in, at, on, upon, from (space)
9	Latin	en	lookǃ beholdǃ; reallyǃ?; come onǃ
10	Proto-Italic	en	in
11	Proto-Indo-European	h₁én	in

Every word from Proto-Indo-European kʷe- →Every word from Proto-Indo-European kʷetwóres →Every word from Proto-Indo-European kʷeturtos →