Abbott-Smith Manual Greek Lexicon
ἄκανθα (G173)
14 ἄκανθα , -ης, ἡ ( ἀκή , a point ), [in LXX chiefly for קוֹץ , also for סִיר , שַׁיִת , etc.;] a prickly plant , thorn , brier ; in NT always pl.: Mt 7:16 13:7 , 22 27:29 , Mk 4:7 , 18 , Lk 6:44 8:7 , 14 , Jo 19:2 , He 6:8 (v. MM, VGT , s.v.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain