Where does “tjena mors” come from?

tjena mors (Swedish) comes from Swedish tjena, from Swedish tjenare, from Swedish tjänare, from Swedish -are, from Old Swedish -are, from Old Norse -ari, from Latin -ārius, from Proto-Italic *-āzios — Forms relational adjectives to nouns (and rarely numerals).

Ancestry of “tjena mors”, step by step

tjena mors traces back through two separate lines of ancestry.

via Swedish tjena

StepLanguageWordMeaning
1Swedishtjenahi, hello; yeah sure; indication of doubt
2SwedishtjenareAlternative form of tjänare
3SwedishtjänareAn informal greeting; hi, hello; servant
4Swedish-areRegular construction of comparative: ful →...
5Old Swedish-area suffix used to create agent nouns from verbs; such as væriare, from væria
6Old Norse-aria suffix used to create agent nouns from verbs;...
7Latin-āriuser
8Proto-Italic*-āziosForms relational adjectives to nouns (and rarely numerals)

via Swedish mors

StepLanguageWordMeaning
1Swedishmorshi, hello
2Swedishmorgona morning; the early hours of the day
3Old Swedishmorghonmorning
4Old Norse[[morgunn]], [[morginn]]
5Proto-Germanic*murginaz
6Proto-Indo-Europeanmerkʷ-dark; to blink, twinkle; to flicker, twinkle,...
7Proto-Indo-Europeanmer-to die; to disappear; sea, lake, wetland
Every word from Proto-Italic *-āziosEvery word from Latin -āriusEvery word from Swedish -are