noun
near; beside; in the vicinity of
Honorific noun meaning the area near a respected person; often used in the pattern おそばに (near someone) or おそばで (while near someone).
See also: 側 (そば)
どうぞおそばにお座りください。
Please sit near me.
おそばで見守
noun
Refers to a person who serves closely, especially in historical or formal contexts; often used for a lord's attendant.
彼は将軍のおそばとして仕えた。
He served as an attendant to the shogun.
I will watch over you from nearby.
そば is the non-honorific equivalent meaning 'near' or 'vicinity'; おそば adds politeness and is used for respected persons.
側近 refers specifically to a close aide or confidant, often in political or organizational contexts, while おそば can be a more general attendant.
Honorific prefix お + そば (side, vicinity). The base そば is a native Japanese word.