-ING

a suffix used to from present participles; as, singing, playing.

2. -ing ·- a suffix formerly used to form diminutives; as, lording, farthing.

3. -ing ·- a suffix used to form nouns from verbs, and signifying the act of; the result of the act; as, riding, dying, feeling. it has also a secondary collective force; as, shipping, clothing.