Strong’s Greek
G2118 — euthutes
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
εὐθύτης
euthutes — pronounced yoo-thoo'-tace
from 2117; rectitude:--righteousness. see GREEK for 2117
1 occurrence in the KJV.
Hebrews 1:8
But unto the Son he saith, Thy throne, O God, is for ever and ever: a sceptre of righteousness is the sceptre of thy kingdom.