ean (Greek #1437)
a conditional particle; in case that, provided, etc.; often used in connection with other particles to denote indefiniteness or uncertainty
KJV usage: before, but, except, (and) if, (if) so, (what-, whither-)soever, though, when (-soever), whether (or), to whom, (who-)so(-ever). See 3361.
Pronounce: eh-an'
Origin: from 1487 and 302
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)