Improvidus , Apto quod Victum
The verb "overcome" is supero, -are, -avi, -atum. The adjective "overcome" is superatus, -a, -um.
There's actually no such language as "Celtic". Celtic refers to a group of dozens of languages, six of which are spoken today: Breton Cornish Irish Gaelic Manx Scottish Gaelic Welsh
Conquer :)
To overcome something in general is superare. To overcome in battle is vincere.
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