ME derk ＜ OE deorc dark ← Gmc derkaz (cf. OHG tarkenen (G tarnen) to conceal) ← IE dh🔗⭐🔉

ME derk ＜ OE deorc dark ← Gmc derkaz (cf. OHG tarkenen (G tarnen) to conceal) ← IE dher- to make muddy; darkness (Gk trkhs rough: ⇒trachea)

研究社新英和大辞典 ページ 182960 での【ME derk ＜ OE deorc dark ← Gmc derkaz to conceal) ← IE dh】単語。