Etymology From Middle English etlien, atlien, from Old Norse ætla (“to think, mean, suppose, intend, purpose”), from Proto-Germanic *ahtalōną (“to strive, think”), from Proto-Indo-European *ok- (“to think, intend, purpose”). Cognate with regional Swedish ättla (“to count, reckon”). Some Middle English forms perhaps remodelled after Old English eaht.
The Siloam nosed and ettled into the grey sprawl of waves and sent up arcs of swift stinging spray.1972, George Mackay Brown, Greenvoe, Polygon, published 2019, page 39:
Etymology From Middle English etlien, atlien, from Old Norse ætla (“to think, mean, suppose, intend, purpose”), from Proto-Germanic *ahtalōną (“to strive, think”), from Proto-Indo-European *ok- (“to think, intend, purpose”). Cognate with regional Swedish ättla (“to count, reckon”). Some Middle English forms perhaps remodelled after Old English eaht.