(här′dē) adjective ·di·er, ·di·est
1. Inured to hardship; robust.
2. Showing hardihood; bold; audacious; strenuous.
3. Able to survive the winter in the open air; perennial: said of plants.
4. Rigid; strong; durable. See synonyms under STRONG. [<OF hardi, pp. of hardir embolden <OHG hartjan make hard]

(har′dē) noun plural ·dies
A square-shanked chisel or fuller for insertion in a hardy-hole. [<HARD + -Y¹]

(här′dē), Thomas,
1840–1928, English novelist and poet.