c. 1600, from French immémorial (16c.) "old beyond memory," from Medieval Latin immemorialis, from assimilated form of in- "not, opposite of" (see in- (1)) + memorialis (see memorial). Something immemorial is ancient beyond memory; something immemorable is not memorable.
雙語例句
1. The Barton family have lived in this village since time immemorial.
巴頓家族自古以來就住在這個村里.
來自《簡明英漢詞典》
2. From time immemorial there has been the belief that there are good and bad places to be.
人生既有順境，也有逆境，這種觀念自古有之。
來自柯林斯例句
3. It has remained virtually unchanged since time immemorial.
實際上，自古以來它幾乎沒有任何改變。
來自辭典例句
4. Communicable diseases have been a curse of mankind since time immemorial.
自古以來,某些傳染性疾病就是人類的災禍.
來自辭典例句
5. There have been ponies on Dartmoor from time immemorial.