Where does “Celtically” come from?

Celtically (English) comes from English ally, from Middle English allie, from Middle English allien, from Old French alier, from Latin alligō, from Latin ad-, from Latin īn-, from Latin în — in.

Celtically (English): In a Celtic manner

Definitions

  1. In a Celtic manner

Ancestry of “Celtically”, step by step

Celtically traces back through two separate lines of ancestry.

via English ally

StepLanguageWordMeaning
1EnglishallyTo unite, or form a connection between, as...
2Middle EnglishallieThe state of having marital or family relations...
3Middle EnglishallienTo ally; to make a pact or confederacy; To marry...
4Old Frenchalierto unite; to join together
5Latinalligōto bind to, up or around something, tie, fetter, fasten; bandage
6Latinad-to; usually prefixed to verbs, in which cases it...
7Latinīn-un-, non-, not
8Latinînin, at, on, upon, from (space)
9Latinenlookǃ beholdǃ; reallyǃ?; come onǃ
10Proto-Italicenin
11Proto-Indo-Europeanh₁énin

via English Celtic

StepLanguageWordMeaning
1EnglishCelticOf the Celts; Of the style of the Celts
2FrenchceltiqueCeltic
3LatinCelticusCeltic; the Celtic language
4LatinCeltaa Celt
5LatinCeltaethe Celts
6Ancient GreekΚελτοίthe Celts
7Proto-Celtickel-to
8Proto-Indo-Europeanḱelh₂-to pierce, strike; to stick; prick; stab
Every word from Proto-Indo-European h₁énEvery word from Latin īn-Every word from Latin ad-
Celtically — Etymology, Origin & Word History | Etymology Explorer