-ing1
/ɪŋ/suffix
1Denoting a verbal action, an instance of this, or its result: fighting outing building
1.1Denoting a verbal action relating to an occupation, skill, etc. banking ice skating welding
2Denoting material used for or associated with a process etc. cladding piping
2.1Denoting something involved in an action or process but with no corresponding verb: sacking
3Forming the gerund of verbs (such as painting as in I love painting).
Origin
Old English -ung, -ing, of Germanic origin.
-ing2
/ɪŋ/suffix
1Forming the present participle of verbs: doing calling
1.1Forming present participles used as adjectives: charming
2Forming adjectives from nouns: hulking
Origin
Middle English: alteration of earlier -ende, later -inde.
-ing3
/ɪŋ/suffix
(Used especially in names of coins and fractional parts) a thing belonging to or having the quality of: farthing riding
Origin
Old English, of Germanic origin.