justice and equity
You can connect two words in Latin three ways. You have to choose between them according to which word you would like to emphasize. Here they are:
XXX et XXX (words of equal importance)
xxx atque XXX (the second is more important)
XXX xxxque (the second is less important, like in Senatus populusque Romanus -- yes, senatus first, populus second :-))
If you put two or more words together without any conjunction, it is called asyndeton. But this here is simply an expression that was knocked up by someone who knew a little Latin, but...
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Native speaker of: Hungarian