Vine's Expository Dictionary: View Entry
ἐπίσταμαι epístamai, ep-is'-tam-ahee; apparently a middle voice of G2186 (with G3563 implied); to put the mind upon, i.e. comprehend, or be acquainted with:—know, understand.
The KJV translates Strong's G1987 in the following manner: know (13x), understand (1x).
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
to be acquainted with, to understand
to know
Strong's Number G1987 matches the Greek ἐπίσταμαι (epistamai),
which occurs 14 times in 14 verses
in the TR Greek.
View OT results in the LXX Greek concordance
View NT results in the MGNT Greek concordance