From Dutch vrolijk ("cheerful"), from Middle Dutch vrolijc, from Old Dutch frōlīk, from Proto-Germanic *frawalīkaz. Compare German fröhlich ("blitheful, gaily, happy, merry").
The first element, ultimately from Proto-Germanic *frawaz, is cognate with Middle English frow ("hasty"); the latter element, ultimately from *-līkaz, is cognate with -ly, -like.
The gay, the frollick, and the loud.
Beale, under this frolic menace, took nothing back at all; he was indeed apparently on the point of repeating his extravagence, but Miss Overmore instructed her little charge that she was not to listen to his bad jokes [...].
(obsolete, rare) Free; liberal; bountiful; generous.
We saw the lambs frolicking in the meadow.
(transitive, archaic) To cause to be merry.
the annual jubilee […] filled the souls of old and young with visions of splendour, frolic and fun.
By the old-fashioned magnificence of this procession, it might worthily have included his Holiness in person, with a suite of attendant Cardinals, if those sacred dignitaries would kindly have lent their aid to heighten the frolic of the Carnival.
He would be at his frolic once again.
"frolic" in The Oxford English Dictionary , 2nd edition, Oxford: Clarendon Press, 1989, →ISBN.