Here's how:
* "De-" is a common prefix indicating movement away from something.
* "Part" refers to a portion or a piece.
Therefore, "depart" means to move away from a place or a group.
Here are some other words with the "de-" prefix that reinforce this concept:
* Decrease: To become smaller (move away from a larger quantity).
* Detach: To separate or disconnect (move away from something connected).
* Deflect: To change direction (move away from the original path).
* Depart: To leave or go away (move away from a location).
By recognizing the prefix "de-", we can infer the general sense of movement away from something, which aids in understanding the word's meaning.