Where does “dewcap” come from?

dewcap (English) comes from English Cap, from English Capricorn, from French Capricorne, from Latin Capricornus, from Latin caper, from Proto-Italic *kapros, from Proto-Indo-European kápros — he-goat, billy goat.

dewcap (English): A tube that protrudes beyond the objective of a telescope or camera etc. to prevent dew from forming on it

Definitions

  1. A tube that protrudes beyond the objective of a telescope or camera etc. to prevent dew from forming on it

Ancestry of “dewcap”, step by step

dewcap traces back through two separate lines of ancestry.

via English Cap

StepLanguageWordMeaning
1EnglishCapA nickname for the captain of a team, ship, etc
2EnglishCapricornSomeone with a Capricorn star sign
3FrenchCapricorneCapricorn
4LatinCapricornusCapricornus, the constellation of the zodiac
5Latincapera male goat, billy goat; vocative singular of...
6Proto-Italic*kaproshe-goat
7Proto-Indo-Europeankáproshe-goat, billy goat

via English dew

StepLanguageWordMeaning
1EnglishdewAny moisture from the atmosphere condensed by...
2Middle Englishdewdew; moisture present on plants; A rejuvenating...
3Old Englishdēawdew
4Proto-West Germanic*dauwmoisture
5Proto-Germanic*dawwaz
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze
Every word from Proto-Indo-European kápros