جص2 جصّص He plastered a building with جِصّ [or gypsum]: (Mgh, K:) or he made a house therewith: (Msb:) i. q. قَصَّصَ, (S, TA,) which is of the dial. of El-Hijáz. (TA.) جِصٌّ (S, Mgh, Msb, K) and جَصٌّ (S, Mgh, K,) but the former is the more chaste: (TA, from an Expos. of the Fs:) the latter is disapproved by IDrd, and disallowed by ISk; (TA;) and it is said in the Bári', on the authority of AHát, that the latter is the form used by the vulgar, and the former is that which is correct: (Msb:) [Gypsum; a certain substance] with which one builds, (S,) or plasters; (Mgh;) well known: (Msb, K:) arabicized; (S, Mgh, Msb, K;) because ج and ص do not occur in any Arabic word; (Msb;) or, accord. to Az, there are some [Arabic] words in which they both occur, as has been mentioned in art. ا from كَجْ (Mgh, K, [in the CK كَچْ]) or, as some say, گَچْ; which are Persian: (TA:) in the dial. of the people of El-Hijáz, قصّ [i. e. قِصٌّ or قَصٌّ]. (Lth, TA.) [The n. un. is with ة: see art. قص.]جَصَّاصٌ A preparer of جِصّ [or gypsum]. (S, K.) جَصَّاصَاتٌ [pl. of جَصَّاصَةٌ] Places in which جِصّ [or gypsum] is made. (K.)