from The American Heritage® Dictionary of the English Language, 4th Edition
- adv. From without.
from The Century Dictionary and Cyclopedia
- n. From without: opposed to ab intra (which see).
Latin ab extrā : ab, from + extrā, outside.(American Heritage® Dictionary of the English Language, Fourth Edition)
First attested in the mid 17th century. Borrowing from Latin ab extra (literally "from outside") From Late Latin ab ("from") extra ("outside"). (Wiktionary)