Definition of "jollily"

Every servant in the family, from high to low, wished Tom success, and I can fancy, an’ please your honour, I see him this moment with his white dimity waistcoat and breeches, and hat a little o’one side, passing jollily along the street, swinging his stick, with a smile and a cheerful word for every body he met.

1782, Laurence Sterne, “Remainder of the Story of Trim’s Brother”, in The Beauties of Sterne: including all his pathetic tales, and most distinguished observations on life‎, London: T. Davies et al, page 74

There’s a sermon now, writ in high heaven, and the sun goes through it every year, and yet comes out of it all alive and hearty. Jollily he, aloft there, wheels through toil and trouble […]

1851 November 14, Herman Melville, “Chapter 99”, in Moby-Dick; or, The Whale, 1st American edition, New York, N.Y.: Harper & Brothers; London: Richard Bentley

[Albert, as scout leader:] Forward! Jollily forward!

1959 September 13, Walt Kelly, Pogo, comic strip, page 251

They stiffened when they saw Hillier, ready to throw him a salute, but he waved at them jollily as he marched through, singing.

1966, Anthony Burgess, Tremor of Intent: An Eschatological Spy Novel, London: Heinemann, Part III, Chapter 3