Original sentence: Krahe's concentration on Indo-European roots and the omission of prefixes had serious negative consequences, because ever later focus was placed on those more than 10,000 roots, perhaps on old Irish, but scarcely on Gaulish and other Celtic languages or Baltic languages and completely leaving out Basque
Edited sentence: Krahe's concentration on Indo-European roots and the omission of prefixes had serious negative consequences, because ever later focus was placed on those more than 10,000 roots, perhaps on old Irish, but scarcely on Gaulish and actual Celtic languages or Baltic languages and completely leaving out Basque