Abbott-Smith Manual Greek Lexicon
ἀκριβόω (G198)
2 ** ἀκριβόω , -ῶ ( ἀκριβής ), [in Aq.: Is 30:8 49:16 *;] to enquire with exactness , learn carefully : Mt 2:7 , 16 (for similar ex., v. MM, VGT , sv.).†
G. Abbott-Smith, A Manual Greek Lexicon of the New Testament (1922) — public domain