palanquin vs palankeen

palanquin and palankeen both are nouns.

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

As nouns, palanquin and palankeen are synonyms defined as:

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

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