pote (Greek #4218)
indefinite adverb, at some time, ever
KJV usage: afore-(any, some-)time(-s), at length (the last), (+ n- )ever, in the old time, in time past, once, when.
Pronounce: pot-eh'
Origin: from the base of 4225 and 5037
ptaio (Greek #4417)
to trip, i.e. (figuratively) to err, sin, fail (of salvation)
KJV usage: fall, offend, stumble.
Pronounce: ptah'-yo