| 1 | English | unknowing | Without knowing; ignorant; Unknown, unbeknownst;... |
| 2 | English | knowing | Possessing knowledge or understanding;... |
| 3 | English | -ing | Used to form gerunds, a type of verbal nouns,... |
| 4 | Old English | -ing | Forming nouns from verbs, indicating action,... |
| 5 | Old English | -tūn | — |
| 6 | Old English | tūn | enclosure, yard; place; dwelling |
| 7 | Proto-West Germanic | tūn | fence |
| 8 | Proto-Germanic | tūną | fence; enclosure |
| 9 | Gaulish | dunum | fort; hill, hillfort |
| 10 | Proto-Celtic | dūnom | stronghold, rampart |
| 11 | Proto-Indo-European | dʰewh₂- | smoke; mist, haze |