Abbott-Smith Manual Greek Lexicon
ἁπλῶς (G574)
1 ἁπλῶς , adv. ( ἁπλοῦς ), [in LXX: Pr 10:9 ( בַּתֹּם ), Wi 16:27 , II Mac 6:6 *;] simply , sincerely , graciously : Ja 1:5 . ("Later writers comprehend under the one word the whole magnanimous and honourable type of character in which ... singleness of mind is the central feature"—Hort, Ja. , 1:5 )†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain