عير

عِيَارٌ ذ and ↓ مِعْيَارٌ are syn.; (S;) both signify [ A standard of measure or weight; ] a thing with which another thing is measured, or compared, and equalized; (Mgh;) [and with which it is assayed: ] or a thing with which measures of capacity are measured, compared, or equalized: (Lth:) the عِيَار of a thing is that which is made, or appointed, a standard thereof, by which to regulate or adjust it; expl. by مَا جُعِلَ نِظَامًا لَهُ. (Msb.) ― -b2- The عِيَار of dirhems, and of deenárs, is [The rate, or standard, of fineness; ] the quantity of pure silver, and of pure gold, that is put into them. (Mgh.) -A2- [See also 1.]