Lexical Definition

‎αἱρετικός‎ hairetikós (hahee-ret-ee-kos') schismatic ^G:A
from the same as ‎αἱρετίζω‎

heretic (the Greek word itself).

• a schismatic

Abbott-Smith

* αἱρετικός, -ή, όν (< αἱρέομαι),
1. capable of choosing (Plat.).
2. causing division, heretical, factious (Cremer, 614): as subst., Tit 3:10.†

Abbott-Smith References

Liddell-Scott-Jones

αἱρετικός-ικός, ή, όν,

(αἱρέω) able to choose, [Refs 5th c.BC+]; due to choice, οἰκείωσις[Refs]

__2 factious, [NT]
__3 Astrology texts, belonging to the 'condition', [Refs 4th c.AD+]
__4 adverb -κῶς from choice, [Refs 4th c.BC+]

_{LSJ Scripture Refs: Titus.3.10}