An overcoat.

A lady's outer garment, -- of varying fashion.

Double-breasted coat cut in a tunic style (i.e., a coat with a skirt all the way around). (Carman)

A paletot is a cloak or coat. I have never heard of it before. I first noted the term in 19th centurty French fashion magazines. I note, however, that it also appears in some English dictionaries. This appears to be more true of English than American dictionaries.