UK, 1980s. Clipping of divvy (“a foolish person”).
Meanings
(Ireland, UK, slang) A foolish person; an idiot.
To put it bluntly – without wanting to attract the ire of mental-health charities – he was a div who went schizo. 2016, Steve Coogan, Neil Gibbons & Rob Gibbons, Alan Partridge: Nomad, page 145:
Zoe reads a lot and isn't a div like girls as pretty as her can be. 2017, Shappi Khorsandi, Nina Is Not OK, page 2:
Too many commentators are quick to accuse their enemies of being evil. It's far, far more effective to point out that they're acting like divs instead. 2012, Caitlin Moran, Moranthology, Ebury Press, published 2012, page 13:
Etymology tree
Proto-Indo-European *dyew-
Proto-Indo-European *-ós
Proto-Indo-European *deywós
Proto-Indo-Iranian *daywás
Proto-Iranian *daywáh
Old Persian 𐎭𐎡𐎺 (d-i-v /daivaʰ/)
Middle Persian 𐫅𐫏𐫇 (dyw /dēw/)
Iranian Persian دیوْ (div)bor.
English div
Borrowed from Iranian Persian دیوْ (div). Doublet of daeva and deva, and (via PIE) related to Tiw, Zeus, and deus. Compare the root *div- in divine and diva as well as *dei- in deity, deism etc.