Where does “weakly” come from?

Weakly derives from Middle English -ly, Old English -līċ, Proto-Germanic waikwaz meaning "pliant or bendable," Proto-Indo-European weg- meaning "to bend," combined with Proto-Indo-European līg- and ḱóm.

weakly (English): Frail, sickly or of a delicate constitution;...

Definitions

  1. Frail, sickly or of a delicate constitution;...

Ancestry of “weakly”, step by step

weakly traces back through two separate lines of ancestry.

via Old English waclice

StepLanguageWordMeaning
1Old Englishwacliceweakly, feebly
2Old English-eforming adverbs from adjectives; -ly
3Old English-enmæġþ + API → mæġden; cocc + API → cycen, cicen;...
4Old Norse-innUsed to create adjectives from nouns, meaning...
5Proto-Norse-īna-
6Proto-Germanic-īnaz-en
7Proto-Indo-European-iHnosCreates adjectives of materials
8Proto-Indo-European-no-adjectival suffix

via Middle English weykly

StepLanguageWordMeaning
1Middle EnglishweyklyWithout strength or force; weakly; In a weak or...
2Middle English-lyAlternative form of -liche
3Old English-līċsuffix forming {{glossary|adjective}}s meaning...
4Proto-Germanic*-līk

Words derived from “weakly

Every word from Proto-Indo-European -no-Every word from Proto-Germanic -īnazEvery word from Old English -en