matitudinal

adjective3

1. •
   (formal, literary) Of, occurring in, or relating to the morning, especially the early morning upon waking up.

   • It so happened, that one morning, while Lord C—— was preparing to enjoy his matitudinal treat, two girls who lived in the second flat above, were amusing themselves with a kitten, […] — 1825
2. •
   (formal, literary) Synonym of matutinal.
3. •
   (formal, literary) Active in the morning; waking up early.

   • Huyton College had the advantage of a school bus, which particularly when Hilary was a teenager, never being matitudinal by nature, she managed to miss each morning, […] — 2012