forasmuch as, if, that, (al-)though, whether

Strong’s Dictionary of Greek Words:

Greek:
εἰ
Transliteration:
ei
Phonic:
i
Meaning:
a primary particle of conditionality; if, whether, that, etc.
KJV Usage:
forasmuch as, if, that, (al-)though, whether. Often used in connection or composition with other particles, especially as in 1489, 1490, 1499, 1508, 1509, 1512, 1513, 1536, 1537. See also 1437