esne

The story

1. Proto-Indo-European · derived from*os(e)n-
2. Proto-Germanic · derived from*asniz
3. Proto-Germanic · derived from*asnijaz“day labourer, hireling”
4. Proto-West Germanic · derived from*asnī
5. Old English · learned borrowing fromesne
6. English todayesne

Learned borrowing from Old English esne, from Proto-West Germanic *asnī, from Proto-Germanic *asnijaz (“day labourer, hireling”), from Proto-Germanic *asniz, *asunz (“reward”), from Proto-Indo-European *os(e)n-, *es(e)n- (“summer, harvest, harvest-time”). Related to Old English earnian (“to labor for, strive after, deserve as the reward of labor, merit, earn, win”). More at earn.