What is the Latin word for dog-tired?

The usual Latin words for “dog-tired” are dēfetīscor, dēfatīgō. The right choice depends on the sense; see the distinctions below.

English → Latin

“dog-tired” in Latin

dēfetīscorto become tired, grow weary, be exhausted dēfatīgōto tire out or exhaust; to lose heart or be discouraged

Riddle & Arnold A Copious and Critical English–Latin Lexicon, 1864

dog-tired

defessus; defatigatus; lassitudine confectus: dog-tired, or as tired as a dog from running, cursu et lassitudine exanimatus. I am dog-tired, or as tired as a dog, omnia membra lassitudo mihi tenet (comical).

Quick answer

What is the Latin word for dog-tired?: The usual Latin words for “dog-tired” are dēfetīscor, dēfatīgō. The right choice depends on the sense; see the distinctions below.

Entry from J. E. Riddle & T. K. Arnold, A Copious and Critical English–Latin Lexicon (rev. C. Anthon, New York: Harper, 1864), digitised by Fergus J. P. Walsh, CC BY-SA 4.0; Latin markup adapted by latindictionary.co.