Word: horseback
Part of speech: Noun
Syllables: horse
back
Definition: A ridge of sand, gravel, and boulders.
Morphemes:
Affix: horse
Language: en
PoS: Noun
Meaning: A mass of earthy matter, or rock of the same character as the wall rock, occurring in the course of a vein, as of coal or ore; hence, to take horse (said of a vein) is to divide into branches for a distance.
Affix: back
Language: en
PoS: Noun
Meaning: Area behind, such as the backyard of a house.