Strong's Greek #2807
κλεῖδα

Englishman's Concordance (References)

κλεῖδα kleida — 1 Occurrence

Luke 11:52 - N-AFS
GRK:ἤρατε τὴν κλεῖδα τῆς γνώσεως
NAS: For you have taken away the key of knowledge;
KJV: ye have taken away the key of knowledge:
INT: you took away the key of the knowledge