rectitude
n.
early 15c., "quality of being straight," from Middle French rectitude (14c.), from Late Latin rectitudinem (nominative rectitudo) "straightness, uprightness," from Latin rectus "straight" (see right, adj.1). Sense of "upright in conduct or character" is from 1530s.
〔李〕n. 正直 [rect =straight] ←-tude [L] 表示“⋯的性质、状态等”
〔蒋〕[rect正，直，itude名词后缀，表示情况，状态，性质] 正直，正确，得寸笔直