from Wiktionary, Creative Commons Attribution/Share-Alike License
- adv. In an infallible manner; The pope speaks infallibly ex cathedra.
from the GNU version of the Collaborative International Dictionary of English
- adv. In an infallible manner; certainly; unfailingly; unerringly.
from The Century Dictionary and Cyclopedia
- In an infallible manner; without failure or mistake; certainly; surely.
Sorry, no etymologies found.