When do you say to see of?

The phrase "to see of" is often used in the context of ensuring someone's well-being or to check on them. It is typically used with the intention of confirming if someone is okay or to inquire about their situation. For example, you might say, "I went to see of her after hearing she was unwell." However, it's worth noting that this phrase is not commonly used in modern English and may sound somewhat archaic.