English
planar
Planar comes from Late Latin plānārius ‘relating to a plane’, from Latin plānus ‘flat”, “level’, and ultimately from Proto-Indo-European *pl̥h₂nós.
- Proto-Indo-Europeanc. 4500–2500 BCE*pl̥h₂nósreconstructed
- Proto-Italicc. 1500–700 BCE*plānosreconstructed
- Latinc. 75 BCE–200 CEplānus‘flat”, “level’
- Late Latinc. 200–600 CEplānārius‘relating to a plane’
- Englishtodayplanar
attested reconstructed ? uncertain or disputed deepest recorded ancestor
Earlier history uncertain.
Lineage
- Proto-Indo-Europeanc. 4500–2500 BCE*pl̥h₂nósreconstructed
- Proto-Italicc. 1500–700 BCE*plānosreconstructed
- Latinc. 75 BCE–200 CEplānus‘flat”, “level’
- Late Latinc. 200–600 CEplānārius‘relating to a plane’
- Englishtodayplanar
Formed from plane + -ar
Proto-Indo-European *pleh₂- ‘flat’
Proto-Indo-European *pl̥h₂nós
Proto-Italic *plānos
Latin plānus ‘plain’
Latin plānum ‘flat surface’
English plane
Linked words
through Proto-Indo-European *pleh₂- ‘flat’
field, floor, palm, planet, clan, fluke, archipelago, flounder, parma, placenta, playa, palatine, lech, polonium, pelagic, placate, veld, implacable, flay, floe, purdah, plantar, planta, 46 more
through Proto-Italic *plānos
unexplainable, explainable, 11 more
through Latin plānus ‘flat”, “level’
explain, plane, plain, explanation, explanatory, esplanade, llano, 14 more
Today it means
adj Of or pertaining to a plane.
Language periods are conventional ranges, not dates for this word.
Etymograph / Proto-Indo-European *pl̥h₂nós / planar