Where does “downchirp” come from?

downchirp (English) comes from English Down, from Middle English doun, from Old English dūn, from Proto-Germanic *dūnā, from Proto-Celtic dūnom, from Proto-Indo-European dʰewh₂- — smoke; mist, haze.

downchirp (English): A chirp that decreases in frequency over time

Definitions

  1. A chirp that decreases in frequency over time

Ancestry of “downchirp”, step by step

downchirp traces back through two separate lines of ancestry.

via English Down

StepLanguageWordMeaning
1EnglishDownusually known as County Down
2Middle Englishdoundown
3Old Englishdūnhill, down; hill, dune; hill, mountain
4Proto-Germanic*dūnā—
5Proto-Celticdūnomstronghold, rampart
6Proto-Indo-Europeandʰewh₂-smoke; mist, haze

via English chirp

StepLanguageWordMeaning
1EnglishchirpA short, sharp or high note or noise, as of a...
2Middle Englishchirpen—
Every word from Proto-Indo-European dʰewh₂- →Every word from Proto-Celtic dūnom →Every word from Proto-Germanic *dūnā →