ᴺS. [N.] ^hwîn n. “giddyness, faintness” (Category: to Sleep; Sleep)
Neo-Sindarin: This word is usually adapted as ᴺS. hwîn for purposes of Neo-Sindarin, as suggested in Hiswelókë’s Sindarin Dictionary (HSD), since initial initial sw became hw in Sindarin of the 1950s and 60s.
Reference ✧ Ety/SWIN ✧ “giddyness, faintness”
|ᴹ√SWIN > chwîn||[swīn] > [w̥īn] > [xwīn]||✧ Ety/SWIN|