δῠσ-, insepar. Prefix, opp.εὖ,
A. un-, mis-, with notion ofhard, bad, unlucky, etc., asδυσήλιος, δύσαγνος;destroying the good senseof a word, orincreasing its bad sense: hence, joined even to words expressing negation, asδυσάμμορος, δυσανάσχετος; poet. in strong contrasts, asΠάρις Δύσπαρις, γάμος δύσγαμος. Beforeστ,σθ,σπ,σφ , σχ, the finalςwas omitted,v. δυστ-. (Cf. Skt.du[snull ]-, dur-, e.g.durmanās, = δυσμενής ; ONorsetor-, e.g.torsóttligr(δύσμαχος); OIr.du-, do-, e.g.dochruth'misshapen'.)