Where does “dernly” come from?

dernly (English) comes from English dern, from Middle English dern, from Old English dyrne, from Proto-West Germanic darnī, from Middle English derk, from Old English deorc, from Proto-West Germanic derk, from Proto-Germanic derkaz — to support; to hold.

dernly (English): Secretly; Sternly, imposingly; Sorrowfully;...

Definitions

  1. Secretly; Sternly, imposingly; Sorrowfully;...

Ancestry of “dernly”, step by step

dernly traces back through two separate lines of ancestry.

via English dern

StepLanguageWordMeaning
1EnglishdernA secret; secrecy; A secret place; hiding; An...
2Middle Englishdern
3Old EnglishdyrneAlternative form of dierne
4Proto-West Germanicdarnīhidden, concealed; secret
5Middle Englishderkdark
6Old Englishdeorcdark
7Proto-West Germanicderkdirty; dark
8Proto-Germanicderkaz
9Proto-Indo-Europeandʰerg-o-s
10Proto-Indo-Europeandʰerg-to dim, darken; dim, dull; dark, dusky
11Proto-Indo-Europeandʰer-to support; to hold

via English ly

StepLanguageWordMeaning
1EnglishlyAbbreviation of light-year
2VietnameselyAlternative spelling of li
Every word from Proto-Indo-European dʰer-
dernly — Etymology, Origin & Word History | Etymology Explorer