English
klystron
Klystron comes from Ancient Greek κλύδων ‘surf’, and goes back to Proto-Indo-European *klūd-.
- Proto-Indo-Europeanc. 4500–2500 BCE*klūd-reconstructed
- Ancient Greekc. 800–300 BCEκλύδωνklúdōn‘surf’
- Englishearliest quotation 1991klystron
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*klūd-reconstructed
- Ancient Greekc. 800–300 BCEκλύδωνklúdōn‘surf’
- Englishearliest quotation 1991klystron
Earliest quotation: 1991, Richard B. Neal, The Stanford Two-mile Accelerator - Volume 1: “Then, he must misphase two klystrons, adjusting by equal…”
Every English word from Proto-Indo-European *klūd-
Today it means
noun an electron tube used to amplify microwave-frequency electromagnetic radiation.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *klūd- / klystron