in utramque parte

The story

1. Latin · derived fromin utramque parte“literally 'into both sides, to either part'”
2. English todayin utramque parte

From Latin in utramque parte (“literally 'into both sides, to either part'”). A common variant of in utramque partem with the accusative singular partem misspelled or altered to parte (ablative singular), likely due to scribal error or conflation with the ablative case in late Latin.