skirret vs Sium sisarum

skirret and Sium sisarum both are nouns.

Word	Noun	Adjective	Verb	Adverb
skirret	Yes	No	No	No
Sium sisarum	Yes	No	No	No

As nouns, skirret and Sium sisarum are synonyms defined as:

skirret and Sium sisarum: an Asiatic herb cultivated in Europe for its sweet edible tuberous root

skirret (noun)	Sium sisarum (noun)
an Asiatic herb cultivated in Europe for its sweet edible tuberous root	an Asiatic herb cultivated in Europe for its sweet edible tuberous root