Word: cornerstone
Part of speech: Noun
Syllables: cor
ner
stone
Definition: That which is prominent, fundamental, noteworthy, or central.
Morphemes:
Affix: corner
Language: en
PoS: Noun
Meaning: An edge or extremity; the part farthest from the center; hence, any quarter or part, or the direction in which it lies.
Etymology Compounds: Affix: corne
Language: fro
Decoded: corne
Meaning: a horn, projecting point
Affix: stone
Language: en
PoS: Adjective
Meaning: Used as an intensifier.