Lexical Definition

‎ὀρθοτομέω‎ orthotoméō (or-thot-om-eh'-o) to cut straight ^G:V
from a compound of ‎ὀρθός‎ and the base of ‎τομώτερος‎, to make a straight cut, i.e. (figuratively) to dissect (expound) correctly (the divine message)

rightly divide.

Abbott-Smith

† ὀρθοτομέω, -ῶ (< ὀρθός, τέμνω), [in LXX: Pr 3:6 11:6 (ישׁר pi.)*;]
to cut straight, as a road (τ. ὁδούς, fig., Pr 3:6 11:6). Metaph., τ. λόγον τ. ἀληθείας, II Ti 2:15 (V. Ellic. and CGT, in l.; not found elsewhere).†

Abbott-Smith References

Liddell-Scott-Jones

ὀρθοτομέω-τομέω,

cut in a straight line, τὰς ὁδούς [LXX] teach it aright, [NT]

_{LSJ Scripture Refs: LXX.Prov.3.6 ☩ 2Tim.2.15}