ὕπαρ

From Proto-Indo-European *súpr̥, generalized from the zero-grade of an r/n-stem of *swep- (“to sleep”) +‎ *-r̥, whence also ὕπνος (húpnos, “sleep”). Originally "sleep, dream"; the opposition to ὄναρ (ónar, “deceiving dream”), led to the meaning "true dream", whence "reality". The r-stem appears also in Hittite 𒋗𒌒𒈦𒉿𒀭𒍝 (su-up-pár-wa-an-za /supparwanz(a)/, “sleepy(?)”) and in Latin sopor (“deep sleep, catalepsy”).

ὕπᾰρ • (húpar) n (genitive —); third declension

1. reality, real appearance seen in a state of waking

   Antonym: ὄναρ (ónar)

This noun is only attested in nom. sg.

• “ὕπαρ”, in Liddell & Scott (1940) A Greek–English Lexicon, Oxford: Clarendon Press
• “ὕπαρ”, in Liddell & Scott (1889) An Intermediate Greek–English Lexicon, New York: Harper & Brothers
• “ὕπαρ”, in Autenrieth, Georg (1891) A Homeric Dictionary for Schools and Colleges, New York: Harper and Brothers
• ὕπαρ in Bailly, Anatole (1935) Le Grand Bailly: Dictionnaire grec-français, Paris: Hachette
• ὕπαρ in Cunliffe, Richard J. (1924) A Lexicon of the Homeric Dialect: Expanded Edition, Norman: University of Oklahoma Press, published 1963
• Beekes, Robert S. P. (2010), “ὕπαρ”, in Etymological Dictionary of Greek (Leiden Indo-European Etymological Dictionary Series; 10), volume II, with the assistance of Lucien van Beek, Leiden, Boston: Brill, →ISBN, page 1532
• Kloekhorst, Alwin (2008), “šupparii̯e/a-^zi”, in Etymological Dictionary of the Hittite Inherited Lexicon (Leiden Indo-European Etymological Dictionary Series; 5), Leiden, Boston: Brill, →ISBN, pages 788–789