lariat vs riata

lariat and riata both are nouns.

Word	Noun	Adjective	Verb	Adverb
lariat	Yes	No	No	No
riata	Yes	No	No	No

As nouns, lariat and riata are synonyms defined as:

Other synonyms of lariat include lasso, reata.

lariat (noun)	riata (noun)
a long noosed rope used to catch animals	a long noosed rope used to catch animals