بَلَقٌ
and
بُلْقَةٌ, (S, K,) the former a verbal noun of بَلِقَ, (K, * TA,) Blackness and whiteness [together, generally in horses]: (S, K:) or the extension of whiteness in the hind legs of a horse as high as the thighs: (ISd, K:) and the latter, any colour with which white is mixed. (Golius on the authority of Meyd.)