Where does “alagge” come from?

alagge (Middle English) comes from English ah, from Chinese 阿, from English aren’t, from English -n’t, from English Not, from Middle English not, from Middle English nought, from Old English nōwiht.

Ancestry of “alagge”, step by step

alagge traces back through two separate lines of ancestry.

via English ah

StepLanguageWordMeaning
1EnglishahAn expression of relief, relaxation, comfort,...
2Chinese
3Englisharen’tare not (negative auxiliary)
4English-n’t
5EnglishNot
6Middle Englishnotnot; nothing, nought; nobody, no person
7Middle Englishnoughtnothing, none; not; iniquitous, wicked
8Old Englishnōwiht
9Old Englishnenot; or, and not; "ne... ne..." is used to mean "...
10Old Englisheallescompletely, wholly, entirely; totally,...
11Old English-espossessive marker, indicating that an object...
12Proto-Germanic-asused in formation of adverbs
13Proto-Indo-European-ēsPrimarily forms adjectival bahuvrīhi compounds
14Proto-Indo-European-ess

via English lack

StepLanguageWordMeaning
1EnglishlackA defect or failing; moral or spiritual...
2Middle Englishlack
3Old English*læc
Every word from Proto-Indo-European -essEvery word from Old English -esEvery word from Old English ealles