Where does “underdue” come from?

underdue (English) comes from English due, from Middle English dewe, from Old French deü, from Latin dēbēre, from Latin dē, from Latin post, from Latin poste, from Proto-Italic posti — afterwards, post; by, at.

underdue (English): Not having reached the deadline yet, especially something that is owing but not yet due

Definitions

  1. Not having reached the deadline yet, especially something that is owing but not yet due

Ancestry of “underdue”, step by step

underdue traces back through two separate lines of ancestry.

via English due

StepLanguageWordMeaning
1EnglishdueOwed or owing; Appropriate; Scheduled; expected
2Middle EnglishdeweAlternative form of dew; Alternative form of...
3Old FrenchdeüAlternative form of deu
4Latindēbēre
5Latinof; concerning; about
6Latinpostbehind; after, since, besides, except; behind,...
7Latinposteablative singular of postis
8Proto-Italicpostibehind, after
9Proto-Indo-Europeanpóstiafter
10Proto-Indo-Europeanpósafterwards, post; by, at

via English under

StepLanguageWordMeaning
1EnglishunderIn or at a lower level than; As a subject of;...
2Middle Englishunderunder
3Old Englishunderunder, beneath
4Germanic*under
5Proto-Indo-European*(H)n̥dʰérunder, below
Every word from Proto-Indo-European pós