出典:Wiktionary
出典:『Wiktionary』 (2025/08/02 16:25 UTC 版)
From the idea that Judas Iscariot was spying on Jesus before betraying him. The Middle Irish equivalent, Cédaín in Braith ["Wednesday of Betrayal" or "Spy Wednesday"], is attested in the 15th-century Leabhar Breac.
Spy Wednesday (plural Spy Wednesdays)