Word Origin & History
rare"unusual," c.1420, originally "few in number and widely separated," from O.Fr. rere "sparse" (14c.), from L. rarus "thinly sown, having a loose texture," from PIE *er-, *ere- "to loose, split, separate" (cf. Skt. rte "besides, except," viralah "distant, tight, rare;" O.C.S. oriti "to dissolve, destroy;"
EXPANDLith. irti "to dissolve;" O.C.S. rediku "rare;" Gk. eremos "solitary"). "Few in number," hence, "unusual" (1542). Rarity is attested from 1560, from M.Fr. rarité (16c.), from L. raritas "thinness, fewness," from rarus. In chemistry, rare earth is from 1875.
rare"undercooked," 1655, variant of M.E. rere, from O.E. hrer "lightly cooked," probably related to hreran "to stir, move." Originally of eggs, not recorded in reference to meat until 1784, and according to OED, in this sense "formerly often regarded as an Americanism, although it was current in many English
dialects ...."
rare"rise up," 1833, dialectal variant of
rear (v.). Sense of "eager" (in raring to go) first recorded 1909.
COLLAPSE