JAU
Meaning in English2
s. m, Corrupted from the Sanskrit word Yaw. Barley, (Hordeum hexastichum, Nat. Ord. Gramineæ) a barley-corn; In the Chenab basin Artemisia Sacrorum is known as jau;—conj. As (poetical):—jaukhár, s. m. The ashes of barley stalks, which consist chiefly of an impure carbonate of potash, are used medicinally in the plains, being given for indigestion:—jau lag, ad. While, whilst, till when.
Source:THE PANJABI DICTIONARY-Bhai Maya Singh