rītdiena

Etymology
From.

Noun

 * 1) (the day of) tomorrow the day after today
 * 2) (the day of) tomorrow the future, especially the near future
 * 1) (the day of) tomorrow the future, especially the near future
 * 1) (the day of) tomorrow the future, especially the near future
 * 1) (the day of) tomorrow the future, especially the near future
 * 1) (the day of) tomorrow the future, especially the near future

Usage notes
is an adverb, meaning “tomorrow,” whereas is a noun, meaning “(the day of) tomorrow.”, on the other hand, is a noun, meaning “morning.” The corresponding locative  can mean both “in the morning” (more frequently:  and “tomorrow” (more frequently: ).