The Collaborative International Dictionary
Enharden
Enharden \En*hard"en\, v. t. [Pref. en- + harden: cf. F.
enhardir to embolden.]
To harden; to embolden. [Obs.]
--Howell.
Wiktionary
enharden
vb. 1 To harden, to render hard. 2 To fortify against adversity.