Where does “rare” come from?

Rare comes from Latin rarus, which derives from the verb radere meaning "to scrape," prefixed with re-, ultimately tracing to the Proto-Indo-European root h₁er- or wer-.

rare (English): Very uncommon; scarce; Thin; of low density;...

Definitions

  1. Very uncommon; scarce; Thin; of low density;...

Ancestry of “rare”, step by step

rare traces back through two separate lines of ancestry.

via English rear

StepLanguageWordMeaning
1EnglishrearTo bring up to maturity, as offspring; to...
2Middle EnglishrerenTo raise; to hold or pull up or suspend upwards;...
3Old Englishrǣranto cause to rise, raise, rear, build, create; to...
4Proto-Germanicraizijanąto cause to rise; raise
5Proto-Germanicrīsanąto scale; move vertically; to rise
6Proto-Indo-Europeanh₁rey-to arise, arise; to rise, arise; to rise; arise

via Middle English rare

StepLanguageWordMeaning
1Middle Englishrareairy, vacuous; porous, breathable; sparsely...
2Old Frenchrare
3Latinrārus
4Proto-Indo-Europeanh₁reh₁-to row; to separate; loose, sparse, rare

Words derived from “rare

Every word from Proto-Indo-European h₁rey-
rare — Etymology, Origin & Word History | Etymology Explorer