δύσκολος dýskolos

Meaning

properly, fastidious about eating (peevish), i.e. (genitive case) impracticable

In the King James Version: hard

Derivation: from G1418 (δυσ-) and (food);

Where it is used

• Mark 10:24 And the disciples were amazed at His words. But Jesus said to them again, “Children, how hard it is to enter the kingdom of God!