1540s, "standing out above a surface," from Latin extantem (nominative extans), present participle of extare "stand out, be visible, exist," from ex- "out" (see ex-) + stare "to stand," from PIE root *sta- "to stand" (see stet). Sense of "in existence" attested in English by 1560s. Related: Extance; extancy, both 17c., both obsolete.
权威例句
1. Two fourteenth-century manuscripts of this text are still extant.
这个文本仍有两份14世纪手抄本存世。
2. extant remains of the ancient wall
尚存的古城墙遗迹
3. Some of Washington's letter are extant.
华盛顿的有些信件仍然被保留着.
4. The oldest extant document is dated 1492.
现存最古老的文献出自1492年。
5. This is the only picture extant of a stereognathus.