Abbott-Smith Manual Greek Lexicon
βόθυνος (G999)
3 βόθυνος , -ου, ὁ (= βόθρος , more freq. in cl.), [in LXX chiefly for פַּחַת ;] a pit : Mt 12:11 15:14 , Lk 6:39 (cf. DB , iii, 885; DCG , ii, 367).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain