Yester-morning n. : The morning of yesterday.

Example:
i woke up with what appeared to be a scratch and has gotten bigger what could this be?

Taxonomy
Dictionary, yester day, adjective, word origin, free online English dictionary, dictionary results, pronunciation, Random House Dictionary, free online dictionary, definitions, websters, spelling, vocabulary, idioms, Copy & paste, pertaining, back formation, combining form.

Defination from the web:
Yester - Definition of Yester at Dictionary.com a free online dictionary with pronunciation, synonyms, ... yester-morning. yester-night. yester-noon. yester-week. yester - 2 dictionary results. yester /ˈyɛstər/ Show Spelled Pronunciation [yes-ter] Show IPA. Use yester in a Sentence ...