winkle vs periwinkle

winkle and periwinkle both are nouns.

Word	Noun	Adjective	Verb	Adverb
winkle	Yes	No	Yes	No
periwinkle	Yes	No	No	No

As nouns, winkle and periwinkle are synonyms defined as:

As nouns, winkle and periwinkle are synonyms defined as:

winkle and periwinkle: small edible marine snail; steamed in wine or baked

winkle (noun)	periwinkle (noun)
edible marine gastropod	edible marine gastropod
small edible marine snail; steamed in wine or baked	small edible marine snail; steamed in wine or baked
	chiefly trailing poisonous plants with blue flowers
	commonly cultivated Old World woody herb having large pinkish to red flowers

winkle (verb)	periwinkle (verb)
remove or displace from a position
gleam or glow intermittently
emit or reflect light in a flickering manner