Strong's #1619: ektenos (pronounced ek-ten-oce')
adverb from 1618; intently:--fervently.
Thayer's Greek Lexicon:
̓͂
ektenōs
1) earnestly, fervently, intensely
Part of Speech: adverb
Relation: from G1618
Usage:
This word is used 1 times:
1 Peter 1:22: "with a pure heart fervently:"