Abbott-Smith Manual Greek Lexicon
ἀμέριμνος (G275)
2 ** ἀμέριμνος , -ον ( μέριμνα ), [in LXX: Wi 6:15 7:23 *;] free from anxiety or care : Mt 28:14 , I Co 7:32 (for exx., v. MM, VGT , s.v.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain