Survey of English Place-Names

Historical Forms

• Illingw(o)rth(e), Yllingw(o)rth(e), Yllyngw(o)rth(e) 1276 YDii 1314 WCR 1330,1340 YDiv 1367,1372 FF 1383 MinAcct 1616 PrHosp

• Hillingw(o)rth, Hyllingw(o)rth 1277,1285,1286,1297 WCR 1541 WillY

• Illegwrth 1307 WCR

• Ilkyngworth 1379 PT

• Elyngworthe 1562 PRHfx

• El(l)inworth 1675 Og 1695 M

Etymology

'Illa's enclosure', v. -ing 4 , worð . The first el. may be the rare OE  pers.n. Ylla (LVD) or it may be an unrecorded Illa found in Eleigh Sf (OE æt Illanlege 1002 ASWills) and Illington Nf (Illynton 942–51 ASWills, Illinketuna 1086 DB) and cognate with OHG  Ilo , Illinc (FörstemannPN 998).