, (S, M,) verbal noun مُبَايَضَةٌ, (TA,) He contended with him for superiority in whiteness. (S, M.)
2.
بَايَضَنِى فُلَانٌ (tropical:) Such a one acted openly with me; synonym جَاهَرَنِى: from النَّهَارِ↓بَيَاضُ [the whiteness of day, or daylight]. (A, TA.)