from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That can be fortified
from the GNU version of the Collaborative International Dictionary of English
- adj. Capable of being fortified.
from The Century Dictionary and Cyclopedia
- Capable of being fortified.
The answer is, somewhere fortified OR at the least, fortifiable.
Ithomatas, to sacrifice there to Jupiter, and take a view of the place, for it is a post as fortifiable as the Acro-Corinthus, and, with a garrison in it, quite as strong and as impregnable to the attacks of all around it.