Word: fastpack
Part of speech: Verb
Syllables: fast
pack
Definition: To run while carrying a backpack on a multi-day trail.
Morphemes:
Affix: fast
Language: en
PoS: Adjective
Meaning: Moving with great speed, or capable of doing so; swift, rapid.
Affix: back
Language: en
PoS: Adverb
Meaning: In a direction opposite to the usual or desired direction of movement or progress, physically or figuratively.
Affix: pack
Language: en
PoS: Verb
Meaning: To transport in a pack, or in the manner of a pack (on the backs of men or animals).