have enough of, add to
贍 centers on having an ample supply, enough to spare, or adding to something so it becomes sufficient. The two given meanings connect through the idea of reaching a state of enough.
贍 combines 貝 (shell, money) with 詹, which likely contributes the sound and may carry a sense of abundance or sufficiency. The exact historical development of 詹 is uncertain.
The left side 貝 represents money or valuables. The right side 詹 looks like a full container with a lid. Picture a treasure chest overflowing with shells: you have enough and can even add more.
For セン, imagine a generous person named Sen who always has enough money (貝) to share. Sen -> セン, and their wealth is always sufficient.
affluence