Word: touchstone
Part of speech: Noun
Syllables: touch
stone
Definition: A stone used to check the quality of gold alloys by rubbing them to leave a visible trace.
Morphemes:
Affix: touch
Language: en
PoS: Noun
Meaning: A touchstone; hence, stone of the sort used for touchstone.
Etymology Compounds: Affix: tochier
Language: fro
Decoded: tochier
Meaning: to touch
Affix: stone
Language: en
PoS: Adjective
Meaning: Constructed of stone; a crystalline rock that can be cut and polished for jewelry