palankeen vs palanquin

palankeen and palanquin both are nouns.

Word	Noun	Adjective	Verb	Adverb
palankeen	Yes	No	No	No
palanquin	Yes	No	No	No

As nouns, palankeen and palanquin are synonyms defined as:

palankeen and palanquin: a closed litter carried on the shoulders of four bearers

palankeen (noun)	palanquin (noun)
a closed litter carried on the shoulders of four bearers	a closed litter carried on the shoulders of four bearers