Origin of indefatigable
Examples from the Web for indefatigability
Your mastery of the language, and your indefatigability, would make you infinitely useful in any of these departments.
It is because of my own indefatigability in talking about talk about talk that they made me a Knight.The Tower of Oblivion|Oliver Onions
At the Westminster election, his indefatigability against the ministerial favourite came amply into play.
No painter ever copied himself with more constancy and indefatigability.Greuze|Alys Eyre Macklin
Owing to the indefatigability of collectors and their persistent and tempting offers, many have left their old homes.Chats on Cottage and Farmhouse Furniture|Arthur Hayden
Word Origin for indefatigable
1580s (implied in indefatigably), from French indefatigable (15c.), from Latin indefatigabilis "that cannot be wearied," from in- "not" (see in- (1)) + defatigare "to tire out," from de- "utterly, down, away" + fatigare "to weary" (see fatigue).