1487. Strong's Dictionary Study
1487. ei {i}; a primary particle of conditionality; if, whether,
that, etc.: --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.[ql
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