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

2. [OE. -ing, AS. -ing, -ung.]
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.

Note: The Old English ending of the present participle and verbal noun became confused, both becoming -ing.

3. [AS. -ing.]
A suffix formerly used to form diminutives; as, lording, farthing.