ETYM Old Fren. alouance.
1. An amount allowed or granted (as during a given period):.
2. A sum granted as reimbursement for expenses.
3. An amount added or deducted on the basis of qualifying circumstances; SYN. adjustment.
4. A permissible difference; SYN. leeway, margin, tolerance.
5. The act of allowing.

1. To put on a fixed allowance (as of food and drink)
2. To supply in a fixed or regular quantity
3. To put on a fixed allowance, as of food.