The word 'regularly-published' is a compound adjective formed from 'regularly' (from 'regular') and 'published' (from 'publish'). 'Regular' comes from Latin 'regularis' meaning 'according to rule', and 'publish' comes from Latin 'publicare' meaning 'to make public'.

'Regularly-published' is a modern English compound, combining the adverb 'regularly' and the past participle 'published' to describe something that is issued at consistent intervals.

Initially, the components meant 'in a regular manner' and 'made public', but together they evolved to mean 'issued at regular intervals'.