δύσκολος G1422
dýskolos · doo'-kol-os · Adjective
from δυσ- and (food); properly, fastidious about eating (peevish), i.e. (genitive case) impracticable:--hard.
1 Occurrence in the King James Bible
Mark 10:24And the disciples were astonished at his words. But Jesus answereth again, and saith unto them, Children, how hard is it for them that trust in riches to enter into the kingdom of God!