Where does “dropsonde” come from?

dropsonde (English) comes from English drop, from Middle English droppen, from Old English dropian, from Old English -ian, from Old English -ōjan, from Proto-West Germanic -ōn, from Proto-Germanic -ōną, from Proto-Indo-European -eh₂yéti — he, she.

dropsonde (English): A weather-observing device dropped from an aircraft

Definitions

  1. A weather-observing device dropped from an aircraft

Ancestry of “dropsonde”, step by step

dropsonde traces back through two separate lines of ancestry.

via English drop

StepLanguageWordMeaning
1EnglishdropA small quantity of liquid, just large enough to...
2Middle EnglishdroppenTo drip; to fall in drops
3Old Englishdropianto drop
4Old English-ianForms verbs from nouns and adjectives
5Old English-ōjan
6Proto-West Germanic-ōnCreates denominative verbs from nouns; Creates...
7Proto-Germanic-ōnąCreates denominative verbs from nouns; Creates...
8Proto-Indo-European-eh₂yétiCreates iterative/ frequentative/ intensive...
9Proto-Indo-European-yétiCreates intransitive, often deponent,...
10Proto-Indo-Europeanyé-
11Chichewaiyehe, she

via English sonde

StepLanguageWordMeaning
1EnglishsondeProbe; sound; Any of various devices for testing...
2Frenchsondeprobe; sound; Any of various devices for testing...
3Middle Frenchsondesounding line
4Old Frenchsondesounding line
5Old Englishsundswimming; sea, water
6Old Norsesundswimming; strait, sound; swimming, sound
7Proto-Germanicsundąswimming; sound, strait
8Proto-Germanicswimmanąto be unsteady; to swim; float
9Proto-Indo-Europeanswem(bʰ)-to bend, turn, swing; to be unsteady, move, swim
Every word from Chichewa iyeEvery word from Proto-Indo-European -yétiEvery word from Proto-Germanic -ōną