IPA: /ˌɑːr.bəʊˈvaɪ.rəl/
KK: /ɑrˈboʊˌvaɪrəl/
Relating to a group of viruses that are transmitted by arthropods, such as mosquitoes and ticks.
The arboviral diseases can cause serious health issues in affected populations.
Arboviral is formed from "arbo-" (from the Latin *arbor*, meaning tree) and "viral" (from Latin *virus*, meaning poison or slimy liquid). The term originally refers to viruses transmitted by arthropods, which are often found in tree-dwelling environments, hence the connection to 'arbo-' meaning tree.
Think of 'arbo-' meaning tree, and 'viral' relating to viruses — this helps you remember that arboviral refers to tree-associated viruses transmitted by insects.