Middle English ettlen, atlen, from Old Norse ætla; akin to Old English eahtian to consider, estimate, watch over, eaht consideration, estimation, Old High German ahtōn to consider, believe, estimate, ahta consideration, attention, esteem, Gothic ahjan to believe, think, aha understanding, mind, Greek oknos hesitation, fear, and perhaps to Old English ēage eye
Noun (2)
by alteration (resulting from incorrect division of a nettle)