It is equally hard to decide as to his birth-place.
Rival theories hold that he was born in Palestine and in Sardinia.

His name has been derived from Cagliari in Sardinia and from the Latin _calyrum_, a cake.

Honey-cakes were given to Jewish children on their first introduction to school, and the nickname "Kaliri," or "Boy of the Cake," may have arisen from his youthful precocity.

But all this is mere guess-work.
It is more certain that the poet was also the singer of his own verses.
His earliest audiences were probably scholars, and this may have tempted Kalir to indulge in the recondite learning which vitiates his hymns.

At his worst, Kalir is very bad indeed; his style is then a jumble of words, his meaning obscure and even unintelligible.