o (Greek #5600)
ἦ (ay); etc. the subjunctive of 1510; (may, might, can, could, would, should, must, etc.; also with 1487 and its comparative, as well as with other particles) be
KJV usage: + appear, are, (may, might, should) be, X have, is, + pass the flower of her age, should stand, were.
Pronounce: o
Origin: ἦς (ace)