preciously vs precious

preciously is not an adjective while precious is an adjective.

Word	Noun	Adjective	Verb	Adverb
preciously	No	No	No	Yes
precious	No	Yes	No	Yes

As adverbs, preciously and precious are synonyms defined as:

preciously (adjective)	precious (adjective)
	obviously contrived to charm
	characterized by feeling or showing fond affection for
	of high worth or cost
	held in great esteem for admirable qualities especially of an intrinsic nature

preciously (adverb)	precious (adverb)
very	very