Containing or resembling sand; sandy in nature or composition.
From Latin 'arena' (sand) combined with the English suffix '-ous' (full of). The Latin 'arena' originally referred to the sandy floor of Roman amphitheaters where gladiators fought.
The word 'arena' itself comes from sand because Roman amphitheaters were literally covered in sand to absorb blood and provide better footing—so when we talk about arenas today, we're indirectly referencing ancient combat zones.
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