from
The Collaborative International Dictionary of English v.0.48
Sizar \Si"zar\, n.
One of a body of students in the universities of Cambridge
(Eng.) and Dublin, who, having passed a certain examination,
are exempted from paying college fees and charges. A sizar
corresponded to a servitor at Oxford.
[1913 Webster]
The sizar paid nothing for food and tuition, and very
little for lodging. --Macaulay.
[1913 Webster]
Note: They formerly waited on the table at meals; but this is
done away with. They were probably so called from being
thus employed in distributing the size, or provisions.
See 4th {Size}, 2.
[1913 Webster]