Word: greywackes
Part of speech: Noun
Syllables: grey
wa
ckes
Definition: Plural of greywacke. A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.
Morphemes:
Affix: greywacke
Language: en
PoS: Noun
Meaning: A hard dark sandstone with poorly sorted angular grains of quartz, feldspar, and small rock fragments in a compact, clay-fine matrix.
Affix: -s
Language: en
PoS: Suffix
Meaning: Used to form many pluralia tantum (nouns that are almost or entirely without singular forms).