In a haggard manner; with a drawn, exhausted, or worn appearance or demeanor.
From 'haggard' (meaning wild-eyed, gaunt, or exhausted) plus the adverbial suffix '-ly,' creating an adverb that describes how something is done with a haggard quality.
Haggardly is rarely used in modern English, but older literature uses it vividly—it captures the specificity of movement and manner, suggesting not just tiredness but a particular kind of wild, desperate exhaustion.
Complete word intelligence in one call. Free tier — 50 lookups/day.