Bull

Proper noun

 * 1)  derived from the name of the animal.

Etymology

 * The sense “bottle” from (cf. 🇨🇬), or from contraction of dated, from , or from a merger of these.
 * The sense “ball” probably from, from . However, the Luxemburger Wörterbuch seems to imply that it was originally used especially of glass balls, hence perhaps in part from loose use of the above.
 * In both senses, influence by the word, from , is also possible.

Noun

 * 1) solid ball
 * 2) roundish bottle
 * 3) hot water bottle
 * 1) hot water bottle