'Dimpsy' or 'Dumpsy'?

I have recently moved deep into the county of Somerset, UK. Owing to some atmospheric disturbance caused by a hurricane, the weather was particularly dark and forbidding.

One person said that the weather was dimpsy, a word I have not heard before. Later I checked in with another person who said that it was not dimpsy, but dumpsy.

What do these words mean, and which one (if either) is more correct usage?

Solution 1:

Dimpsy is a term used in SW England meaning dusky:

• This lovely word is used in the south-west of England as a noun to refer to twilight and as an adjective with the sense ‘dusky, dim’.

• The origin of ‘dimpsy’ is not certain. One theory is that it may be derived from ‘dim’ (which can be used as a noun to mean ‘dusk’), and ‘dim’ certainly seems to be the origin of ‘dimmit’, another word from the south-west of England meaning ‘dusk’.

(OxfordWordsBlog)

Dumpsey appears to be:

• a Dorset slang for dusk.

(www.encyclo.co.uk)

As you can see, the two regions (Somerset and Dorset)are close to each other and that may have an influence on the usage of some dialectal terms.