Abbott-Smith Manual Greek Lexicon
ἐκτενής (G1618)
2 ** ἐκτενής , -ές ( ἐκτείνω ), [in LXX: III Mac 3:10 5:29 * ;] stretched, strained . Metaph., earnest, zealous : I Pe 4:8 .†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain