G2272 ἡσύχιος (hēsýchios)

KJV renderings: peaceable, quiet
Strong's definition: properly, keeping one's seat (sedentary), i.e. (by implication) still (undisturbed, undisturbing)
Derivation: a prolonged form of a compound probably of a derivative of the base of G1476 (ἑδραῖος) and perhaps G2192 (ἔχω);

From James Strong's public-domain dictionaries (G), JSON edition by OpenScriptures (CC-BY-SA). Every dotted-underline word in the text links here.