Word: screwback
Part of speech: Noun
Syllables: screw
back
Definition: A masonry abutment on an arch that is wedge-shaped in order to transmit the thrust downward.
Morphemes:
Affix: screw
Language: en
PoS: Noun
Meaning: An Archimedes screw;  is a machine used for transferring water from a low-lying body of water into irrigation ditches
Etymology Compounds: Affix: scrōfa
Language: la
Decoded: scrofa
Meaning: female pig
Affix: back
Language: en
PoS: Noun
Meaning: The roof of a horizontal underground passage.