Lavishly

Adverb

 * 1) In a lavish manner, expending profusely.
 * He was noted to entertain lavishly, throwing the biggest and best parties in town.

Thesaurus
abundantly, affluently, aplenty, beyond measure, bigheartedly, bottomlessly, bounteously, bountifully, copiously, diffusely, effusely, extravagantly, exuberantly, freehandedly, freeheartedly, freely, fully, generously, graciously, greatheartedly, handsomely, hospitably, in abundance, in full measure, in good supply, in plenty, in quantity, inexhaustibly, largeheartedly, liberally, maximally, more than enough, no end, openhandedly, openheartedly, opulently, out of measure, overabundantly, overflowingly, plenteously, plentifully, prodigally, profusely, richly, riotously, superabundantly, to the full, ungrudgingly, unselfishly, unsparingly, unstintingly, with both hands, with open hands, without measure, without stint

Translations

 * Finnish: avokätisesti
 * French: fastueusement