Cecilia OFr Cecile < Lat Caecilia, fem. of Caecilius, <caecus `blind'; the vern. form is Sisley, Cecily, etc.[Sisley, Siss, Sisterson]
| Cecely | 1296 Sisley |
| Cecelya | 1303 (W) |
| Cecili* | 1279 Sisley |
| Cecilia | 1154-89 Sisley; 1194 Harwell; 1199 Kay; 1202 Floor; 1206 Brundell; 1219 Howgrave; 1228 Blanchflower; 1216-72 Charbuckle; 1254 Fairbody; 1275 Okey;1279 Daniel; 1283-84 Lovey; 1286 Millward; 1296 Longliff; 1297 Lucy; 1298 Mungeam; 1301 Skin; 1327 Nicker; 1332 Buckhurst; 1354 Monkby; 1379 Darnbrook; 1381 li; 1395 Sillick; 1428 (W) |
| Cecilie | 1450 (W); 1576 Harvest |
| Cecilie (g.) | 1210 Sisley |
| Cecilie* | 13°Sisley |
| Cecille | 1273 (W) |
| Cecillia | 1346 (W) |
| Cecily | 1246 Gorrell; 1279 Will; 1523 Hutchin |
| Cicily | 1413 Semple |
| Sisilla | 1281 Creet |
| Sicillia | 1464 Bielby |
| Sysley | 1570 Henshall |
| Cisse | 1309 Siss |
| Sisse (g.) | 1297 Siss |
| Cissota | 1298 Sisterson; 1307 Tout; 1309 Sisterson |
| Sissota | 1291 Grimston; 1309 Sisterson |
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