English
kathetal
Kathetal comes from Ancient Greek κάθετος ‘perpendicular’, from καθίημι ‘to send down, let fall, let down, lower’, and ultimately from Proto-Indo-European *(H)yeh₁- ‘to throw’.
- Proto-Indo-Europeanc. 4500–2500 BCE*(H)yeh₁-‘to throw’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*yīyēmireconstructed
- Ancient Greekc. 800–300 BCEἵημι‘to release, let go’
- Ancient Greek, derivedc. 800–300 BCEκαθίημι‘to send down, let fall, let down, lower’
- Ancient Greek, derivedc. 800–300 BCEκάθετοςkáthetos‘perpendicular’
- Englishtodaykathetal
attested reconstructed ? uncertain or disputed
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*(H)yeh₁-‘to throw’reconstructed
- Proto-Hellenicc. 2200–1600 BCE*yīyēmireconstructed
- Ancient Greekc. 800–300 BCEἵημι‘to release, let go’
- Ancient Greek, derivedc. 800–300 BCEκαθίημι‘to send down, let fall, let down, lower’
- Ancient Greek, derivedc. 800–300 BCEκάθετοςkáthetos‘perpendicular’
- Englishtodaykathetal
Linked words
through Proto-Indo-European *(H)yeh₁- ‘to throw’
year, project, hour, disease, object, ease, adjacent, jet, injection, jess, trajectory, inject, conjecture, gist, ejection, abject, eject, jetty, ejaculation, jut, subjection, ejaculate, interject, jettison, joist, jetsam, 42 more
through Ancient Greek ἵημι ‘to release, let go’
through Ancient Greek καθίημι ‘to send down, let fall, let down, lower’
Today it means
adj Making a right angle; perpendicular
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *(H)yeh₁- / kathetal