On the other hand, this apparently by an American writer!

Wellies - Wellington Boots, named after the Duke of Wellington. Similar to our galoshes.

However, some of her other defs are moron a bit suspect…

http://www.bbcprograms.com/pbs/insider/webcontent/nov02/glossary.doc


Ducking again (edit) ~

Seems to also be confirmed by some amateurs’ ‘dictionary’ sites, like this one from the UK side….

wellingtons n. More correctly referred to as Wellington boots (and more often as wellies), Americans will know these as rubber boots or galoshes. Named after the Duke of the same name (you know, the one with the smelly feet).

welly adv. 1. A single wellington boot. 2. (Scot) Mostly related to driving automobiles, the word "welly" is used (most commonly in the context "give it some welly") to urge a bit more bravado on the accelerator pedal. This may or may not be related to the "wellington boot" definition.


http://english2american.com/dictionary/w.html


and like this one from an American who lived in the UK for over a decade:

http://www.travelfurther.net/index.htm