Mid 19th century; earliest use found in The Morning Star. Irregularly from classical Latin palūd-, palūspalus + -ine + -ous. Compare post-classical Latin paludinosus marshy, swampy.
Definition of paludinous in US English:
paludinous
adjectiveˌpəˈljuːdɪnəs
rare
Paludal.
Origin
Mid 19th century; earliest use found in The Morning Star. Irregularly from classical Latin palūd-, palūs palus + -ine + -ous. Compare post-classical Latin paludinosus marshy, swampy.