early 13c., whennes, with adverbial genitive -s, from Old English hwanone, related to hwænne (see when). Spelling with -ce (1520s) reflects the voiceless pronunciation.
雙語例句
1. No one ordered him back whence he came.
沒有人命令過他從哪裏來回哪裏去。
來自柯林斯例句
2. They returned whence they had come.
他們從哪裏來又回到哪裏去了。
來自《權威詞典》
3. All are good lasses, but whence come the bad wives?