《1669》 ← L stgntus (p.p.) ← stgnre to become a pool, make stagnant ← stgnum pool ← IE stag-🔗⭐🔉

《1669》 ← L stgntus (p.p.) ← stgnre to become a pool, make stagnant ← stgnum pool ← IE stag- to drip (Gk stzein to drip): ⇒-ate^３ stag・na・tion /stgnn/

研究社新英和大辞典 ページ 224625 での【p.p.】単語。