COMPLETELY SAPPING YOUR ENERGY

to sap to make someone weaker or take away strength or an important quality from someone, especially over a long period of time:

Constant criticism saps you of your confidence.

Taking care of her dying mother had sapped all her energy.

sap noun the liquid that carries food to all parts of a plant:

Maple syrup is obtained from the sap of the sugar maple tree.

C1–photocopies from 10^th April

C1–sentences elicited from students