Word: mountainboards
Part of speech: Noun
Syllables: moun
tain
boards
Definition: Plural of mountainboard;  is a well established if little-known action sport, derived from snowboarding
Morphemes:
Affix: mountain
Language: en
PoS: Noun
Meaning: An elevation of land of considerable dimensions rising more or less abruptly, forming a conspicuous figure in the landscape, usually having a small extent of surface at its summit.
Etymology Compounds: Affix: mon
Language: en
Decoded: mon
PoS: Noun
Meaning: The badge or emblem of a Japanese family, especially a family of the ancient feudal nobility; typically circular and consists of conventionalized forms from nature.
Affix: -s
Language: en
Decoded: -s
PoS: Suffix
Meaning: Used in the formation of certain English adverbs.
Affix: -ānus
Language: la
Decoded: -anus
Meaning: suffix forming an adjective
Affix: board
Language: en
PoS: Noun
Meaning: Short for blackboard, whiteboard, chessboard, surfboard, circuit board, message board (on the Internet), etc.
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form regular plurals of nouns.