oはよhayou
1.

A polite and friendly greeting used during the morning when encountering someone.

2.

An expression of well-wishing aimed at conveying goodwill at the start of the day.

3.

A customary salutation exchanged in the morning, often reflecting social norms of respect and acknowledgment.

Example:

おはよう。ご飯をよそっても良いかしら?