To hollow out or excavate; to scoop out or make concave by removing the interior.
From Latin 'excavare' (to hollow out), shortened or variant form. This verb form appears in some texts but is rare compared to 'excavate' in modern English.
'Excave' is like the scholarly older sibling of 'excavate'—it's the simpler Latin base that later got the prefix 'ex-' added for emphasis. Language keeps both versions like keeping tools in different sizes.
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