This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

v. Simple past tense and past participle of coffin.

"I felt panic rise from my stomach to my chest, the acute anxiety of not knowing my father anymore, of being coffined, in this black cab, this hearse, taking us past all the street signs: food store, bank, leftover generic storefronts from Communism, through the hilly dark in a country where nobody spoke our language."