אֵיתָן (ʼêythânay-thawn'adjectiveperennial)
[Heb] אֵיתָן ETCBC: אֵיתָן‎ (adjv|ever-flowing) OSHL: j.ee.ab TWOT: 935a GK: H419 Greek: δυνάστης, ἰσχυρός, κράτος, τραχύς, χώρα
Derivation: or (shortened) אֵתָן ; from an unused root (meaning to continue);
Strong's: permanence; hence (concrete) permanent; specifically a chieftain
KJV: hard, mighty, rough, strength, strong.