滴 di1, a drip a drop of water; not exactly a leak that's lou 漏

滴di1 literally means a drop of water, drip drop
https://hanziyuan.net/#%E6%BB%B4
滴滴 is the name of a Chinese ride hailing company.
帝di4 emperor. It's a pictograph of the bud of a flower facing downward, the idea is that the emperor is the downward face of heaven,.
https://hanziyuan.net/#%E5%B8%9D
谛d1 examine/attentive/careful/meaning/truth
嫡di2 one's first wife 

Basically the jin巾*(towel/scarf) in emperor  皇帝 gets standardized to 古 （ancient) in drip 滴di1.

氐 is also di1 it's the name of an ancient tribe but in modernity means foundation low, down, base, below. The dot on the bottom emphasizes the idea of foundation, base or even in colocations the threshold of a door.

漏 water on the left rolls off the roof but also leaks through it falling beneath it - a rainstorm雨 indoors...

思念的雨。