reckon
‘to count, consider, relate, regard’
Lexical development traced from the Tamil root:
E. recenian, rekeni, rekyn, rekynne, reken, reacon < O.E. gerecenian ‘to explain, relate, recount; arrange in order’ < Proto-G. (ga)rakinaz ‘ready, straightforward’ < rehk < reg- < Tamil aracaṉ