Chucklingly

adv. [f. CHUCKLING ppl. a. + -LY².] In a chuckling manner, with a chuckle.

1835.  Chester Chron., 13 Feb., 4/1. The ‘rapid decline & decrepitude of the Whig party’ is chucklingly dwelt upon.

1841.  Fraser’s Mag., XXIII. 233. ‘I’ll have it,’ said he, chucklingly.

1872.  Lytton, Parisians, V. i. He muttered chucklingly.