Christ comes from the Greek word χριστός (chrīstós), meaning "anointed one".
Septuagint, christos was used to translate the Hebrew מָשִׁיחַ (Mašíaḥ, messiah), meaning "[one who is] anointed"
Question: "What is the anointing? What does it mean to be anointed?"
Answer: The origin of anointing was from a practice of shepherds. Lice and other insects would often get into the wool of sheep, and when they got near the sheep’s head, they could burrow into the sheep’s ears and kill the sheep. So, ancient shepherds poured oil on the sheep’s head. This made the wool slippery, making it impossible for insects to get near the sheep’s ears because the insects would slide off. From this, anointing became symbolic of blessing, protection, and empowerment.