Word: keystoning
Part of speech: Verb
Syllables: key
sto
ning
Definition: Present participle of keystone; the central building block at the top of an arch or vault
Morphemes:
Affix: key
Language: en
PoS: Noun
Meaning: A keystone; the central building block at the top of an arch or vault
Affix: stone
Language: en
PoS: Verb
Meaning: To wall with stones.
Affix: -ing
Language: en
PoS: Suffix
Meaning: Used to form present participles of verbs.