Constipate (verb)

1. To cause difficulty in passing feces, resulting in infrequent or hard stools.
2. To clog up or block up something.

Origin:

From the latin constipatus, from constipare, meaning "to press together".

Examples:

1. Eating a diet high in processed foods can constipate you.
2. Some medications can constipate you as a side effect.
3. The drain was constipated and couldn't let the water through.
4. The strike constipated the movement of goods.
5. The blocked pipe constipated the water flow.