Sibyl Lat Sibilla < Gk Sibylla; Sibley is the vern. Sibba c.1095 isprob. the ON fem. name, but Sibbe is likely to be the hyp.Sibb, which has a dim. in -ot. [Sibley, Sibble,Sibbe]
| Sibel | 1296 Furse |
| Sibell | 1434 (W) |
| Sibeli* | 1279 Sibley |
| Sibely | 1273 (W) |
| Sibil | 1275 Edmond; 1332 Partrick |
| Sibile (g.) | 1189 Sibble |
| Sibilia | 1275 Benneworth;1379 (W) |
| Sibilie | 1273(W) |
| Sibilie* | 1275 Sibley |
| Sibilla | 1199 Fiennes; 1219 Sibble; 1254 Custer;1275 Inston; 1288-89 Goodifer; 1316 (W); 1327 Lomb; 1332 Stephen; 1379 Stockbridge |
| Sibilla* | 1170 Sibble |
| Sibli* | 1279 Sibley |
| Sibyll | 1279 Ferrier |
| Sybbly | 1440 (W) |
| Sybil | 1201 Hazard |
| Sybill | 1455 (W) |
| Sybyle | 1440 (W) |
| Sybyll | 1572, 1573 Stallard |
| Sibba | c.1095 Sibbe |
| Sibbe | 1306 Sibbe; 1440(W) |
| Sibbe (g.) | 1297 Sibbe |
| Sybby | c.1515 (W) |
| Sibota | 1379 (W); 1408 Westland |
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