Strong's G1256 — διαλέγομαι (verb)
dialegomai (dee-al-eg'-om-ai) v.
1. to say thoroughly, i.e. discuss (in argument or exhortation)
[middle voice from G1223 and G3004]
KJV: dispute, preach (unto), reason (with), speak 
Root(s): G1223, G3004 
Hebrew root: λέγω
Occurrences: 13