Readings & Meanings:
to fall (rain, snow)
to get off, to come down
It's been snowing since yesterday.
There is a 50% chance of rain tomorrow.
In a sign of surrender, they waved a white handkerchief.
It's a good time to address Kozato, the 阝 radical.
That is, 阝 is called Kozato only when it's on the left. When it's on the left, it's an abbreviated form of 阜, which means piled earth, mound, or hill.
(But, when 阝 is on the right (see 京都), it's called Oozato and is an abbreviated form of 邑, for town. Sometimes simplification makes things harder.)
On the right is 夅. 夅 was how this kanji appeared in the earliest records of Chinese calligraphy (before 1000 BC). 夅 is a pictograph of feet that are pointing down.
The earliest meaning of 阝+ 夅 was to descend a high hill or descend from something higher. Later, the meaning was extended to "defeat," "give up," "rain," and even "abort."