from The American Heritage® Dictionary of the English Language, 4th Edition
- suffix Used to form the present participle of verbs: seeing.
- suffix Used to form adjectives resembling present participles but not derived from verbs: swashbuckling.
- suffix Action, process, or art: dancing.
- suffix An instance of an action, process, or act: a gathering.
- suffix An action or process connected with a specified thing: berrying.
- suffix Something necessary to perform an action or process: mooring.
- suffix The result of an action or process: a drawing.
- suffix Something connected with a specified thing or concept: siding; offing.
- suffix One having a specified quality or nature: sweeting.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- suffix Used to form gerunds, a type of verbal nouns, from verbs.
- suffix Used to form uncountable nouns from various parts of speech denoting materials or systems of objects considered collectively.
- suffix Used to form nouns of the action or the procedure of a verb; usually identical with meaning 1. in the English language or expressed with -tion instead
- suffix Used to form present participles of verbs.
- suffix Forming derivative nouns (originally masculine), with the sense ‘son of, belonging to’, as patronymics or diminutives.
- suffix Having a specifed quality, characteristic, or nature; of the kind of
from the GNU version of the Collaborative International Dictionary of English
- A suffix used to from present participles.
- A suffix used to form nouns from verbs, and signifying the act of; the result of the act. It has also a secondary collective force.
- A suffix formerly used to form diminutives.
Middle English, alteration (influenced by -inge, noun or gerund suff.; see -ing2) of -ende, -inde, from Old English -ende, present participle suff.
Middle English, from Old English -ung, -ing.
Middle English, from Old English, belonging to, descended from.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English -ing, from Old English -ing, -ung ("-ing", suffix forming nouns from verbs), from Proto-Germanic *-ingō, *-ungō, from Proto-Indo-European *-enkw-. Cognate with West Frisian -ing ("-ing"), Dutch -ing ("-ing"), Low German -ing ("-ing"), German -ung ("-ing"), Swedish -ing ("-ing"), Icelandic -ing ("-ing"). (Wiktionary)
From Middle English -inge, -ynge, alteration of earlier -inde, -ende, -and (see -and), from Old English -ende (present participle ending), from Proto-Germanic *-andz (present participle ending), from Proto-Indo-European *-nt-. Cognate with Dutch -end, German -end, Gothic -𐌰𐌽𐌳 (-and), Latin -ans, -ant-, Ancient Greek -ον (-on), Sanskrit (-ant). More at -and. (Wiktionary)
Middle English -ing, from Old English -ing, from Proto-Germanic *-ingaz. Akin to Old Norse -ingr, Gothic -𐌹𐌲𐌲𐍃 (-iggs). (Wiktionary)