Where does “steamtight” come from?

steamtight (English) comes from English steam, from Middle English steem, from Old English stēam, from Proto-Germanic staumaz, from Proto-Indo-European dʰew- — to die, pass away; to run, flow.

steamtight (English): So tightly made that steam cannot enter or escape

Definitions

  1. So tightly made that steam cannot enter or escape

Ancestry of “steamtight”, step by step

steamtight traces back through two separate lines of ancestry.

via English steam

StepLanguageWordMeaning
1EnglishsteamThe vapor formed when water changes from liquid...
2Middle Englishsteem
3Old Englishstēamsteam, hot exhalation, hot breath; that which...
4Proto-Germanicstaumazsteam, vapour
5Proto-Indo-Europeandʰew-to die, pass away; to run, flow

via English tight

StepLanguageWordMeaning
1EnglishtightFirmly held together; compact; not loose or open;...
2Middle Englishtight
3Old Englishþiht
Every word from Proto-Indo-European dʰew-