an (Greek #302)
a primary particle, denoting a supposition, wish, possibility or uncertainty
KJV usage: (what-, where-, wither-, who-)soever. Usually unexpressed except by the subjunctive or potential mood. Also contracted for 1437.
Pronounce: an
hoti (Greek #3754)
demonstrative, that (sometimes redundant); causative, because
KJV usage: as concerning that, as though, because (that), for (that), how (that), (in) that, though, why.
Pronounce: hot'-ee
Origin: neuter of 3748 as conjunction