sincerity

from ἁπλοῦς; singleness, i.e. (subjectively) sincerity (without dissimulation or self-seeking), or (objectively) generosity (copious bestowal):--bountifulness, liberal(-ity), simplicity, singleness.

from εἰλικρινής; clearness, i.e. (by implication) purity (figuratively):--sincerity.

from a compound of Α (as a negative particle) and (in the sense of a stone as stubbing the foot); smoothness, i.e. (figuratively) simplicity:--singleness.