sincerity
n.
early 15c., "honesty, genuineness," from Middle French sinceritie (early 16c., Modern French sincérité) and directly from Latin sinceritatem (nominative sinceritas) "purity, soundness, wholeness," from sincerus "whole, clean, uninjured," figuratively "sound, genuine, pure, true, candid, truthful" (see sincere).
〔李〕[sincer（ ←sincere）a. 真诚的；-ity →] n. the quality or state of beings incere；honesty真诚；诚意；真挚