| Abbreviation | Definition | Source Type | Occurrences |
|---|---|---|---|
| HMC Var | Report on Manuscripts in Various Collections, 8 vols. (Historical Manuscripts Commission), 1901-23. | source | 103 |
| Historical place-name form | Year and Source | Type of place | County |
|---|---|---|---|
| Orset | 1230 Cl , 1490 HMC Var ii | Settlement | Cambridgeshire |
| Orsett | 1230 Cl , 1490 HMC Var ii | Settlement | Cambridgeshire |