eleven
‘the cardinal numeral next after ten’
Lexical development traced from the Tamil root:
E. elleouen, eleuyn, elevene, eleuen < elleovene < O.E. enleofan, endleofan ‘one left’ < Proto-G. ainlif- < ain ‘one’ + leikw- ‘to leave’ < ehvn < oi-no- < Tamil oṉṟu