1987 epistamai {ep-is'-tam-ahee}
apparently a middle voice of 2186 (with 3563 implied);; v
AV - know 13, understand 1; 14
1) to put one's attention on, fix one's thoughts on, to turn
one's self or one's mind to, put one's thought upon a thing
1a) to be acquainted with, to understand
1b) to know
For Synonyms see entry 5825