meerestone vs mearstone

meerestone and mearstone both are nouns.

Word	Noun	Adjective	Verb	Adverb
meerestone	Yes	No	No	No
mearstone	Yes	No	No	No

As nouns, meerestone and mearstone are synonyms defined as:

meerestone and mearstone: an old term for a landmark that consisted of a pile of stones surmounted by an upright slab

Other synonyms of meerestone include merestone.

meerestone (noun)	mearstone (noun)
an old term for a landmark that consisted of a pile of stones surmounted by an upright slab	an old term for a landmark that consisted of a pile of stones surmounted by an upright slab