Usage examples for nag:

• I fear I cannot sit the nag home." "Hillsboro People" – Dorothy Canfield

• I had opened the gate on entering, and it had struck me, even as I had done this, how easy it would have been for a horse- thief to enter the stable and take whatever nag he pleased, as far as the ostler was concerned. "The Coming of the King" – James Hocking

• In the same way the original sign, " Whip and Nag between which there is often a very close connection, became " Whip and Egg"; and the reason why these two articles should be placed together is not so evident. "English Villages" – P. H. Ditchfield

• Susanna ain't one to nag and hector and triumph over a man when he's repented. "Susanna and Sue" – Kate Douglas Wiggin