水-83 落 (动) ① leave out; be missing ② leave behind; forget to bring ③ lag (or fall, drop) behind

落   甲骨文象天空雨水降落之形。后改雨头为花草形。《说文》注：“凡草曰零，木曰落。从草,洛声。”落指树叶脱落。借指跟不上，被丢在后面，如落后、落伍等。此字又读luò、lào。

là

落 (动) ① leave out; be missing ② leave behind; forget to bring ③ lag (or fall, drop) behind