Left: word 讠/言 (sound waves out of a mouth 口), right: stomach 胃 (...from the field 田 into this body part 月), here: 田 as mouth with teeth
The words come from the mouth-like 田 body part 月 when: speaking.

Top: rice field 田, bottom: part of body 月/肉
It comes from the field and ends in this part of the body: The stomach.

Left: water 氵, right: stomach 胃 (...from field 田 into this bodypart 月)
The water wound like a stomach is the: river Wei.