Strong’s Greek
G2903 — kratistos
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
κράτιστος
kratistos — pronounced krat'-is-tos
superlative of a derivative of 2904; strongest, i.e. (in dignity) very honorable:--most excellent (noble). see GREEK for 2904
4 occurrences in the KJV.
Luke 1:3
It seemed good to me also, having had perfect understanding of all things from the very first, to write unto thee in order, most excellent Theophilus,
Acts 23:26
Claudius Lysias unto the most excellent governor Felix sendeth greeting.
Acts 24:3
We accept it always, and in all places, most noble Felix, with all thankfulness.
Acts 26:25
But he said, I am not mad, most noble Festus; but speak forth the words of truth and soberness.