| 1 | Middle English | engrossen | — |
| 2 | Anglo-Norman French | engrosser | — |
| 3 | Medieval Latin | ingrossō | — |
| 4 | Latin | grossus | coarse, unrefined; young, green, immature; thick,... |
| 5 | Old High German | grōz | big, large, thick; great; large, thick, coarse |
| 6 | Proto-West Germanic | graut | — |
| 7 | Proto-Germanic | grautaz | coarse, crude; big, large |
| 8 | Proto-Indo-European | ǵʰer- | to yearn for; to enclose; bowels, intestines |