ETYM Probably akin to pudding, and perhaps the same word as pad a cushion; cf. also Dan. pude pillow, cushion, and also Eng. cod a husk, pod.
1 > A group of aquatic mammals.
2 > A detachable container of fuel on an airplane | SYN: fuel pod.
3 > A bit socket in a brace.
4 > A straight groove or channel in the barrel of an auger.

To produce pods, of plants.

1 > The vessel that contains the seeds of a plant (not the seeds themselves) | SYN: cod, seedcase.
2 > A several-seeded dehiscent fruit as e.g. of a leguminous plant | SYN: seedpod.
In botany, a type of fruit that is characteristic of legumes (plants belonging to the Leguminosae family), such as peas and beans.
It develops from a single carpel and splits down both sides when ripe to release the seeds.
In certain species the seeds may be ejected explosively due to uneven drying of the fruit wall, which sets up tensions within the fruit.
In agriculture, the name “legume” is used for the crops of the pea and bean family. “Grain legume” refers to those that are grown mainly for their dried seeds, such as lentils, chick peas, and soy beans.