Where does “lackaday” come from?

lackaday (English) comes from English alack, from Middle English alacke, from English ah, from Chinese 阿, from English aren’t, from English -n’t, from English Not, from Middle English not — vitality; eternal; vital force, life, long life,...

Ancestry of “lackaday”, step by step

StepLanguageWordMeaning
1EnglishalackAn expression of sorrow or mourning
2Middle Englishalacke—
3EnglishahAn expression of relief, relaxation, comfort,...
4Chinese阿—
5Englisharen’tare not (negative auxiliary)
6English-n’t—
7EnglishNot—
8Middle Englishnotnot; nothing, nought; nobody, no person
9Middle Englishnoughtnothing, none; not; iniquitous, wicked
10Old Englishnōwiht—
11Old Englishnenot; or, and not; "ne... ne..." is used to mean "...
12Proto-West Germanic*ne—
13Proto-Germanicnēnot
14Proto-Germanicaiwazlong time, age, eternity
15Proto-Indo-Europeanh₂eyu-vitality; eternal; vital force, life, long life,...
Every word from Proto-Indo-European h₂eyu- →Every word from Proto-Germanic aiwaz →Every word from Proto-Germanic nē →