There are plenty if you know how to look for them, though some, such as grammaticalised palatalisation, are incidental, and others, such as the preservation of

There are plenty if you know how to look for them, though some, such as grammaticalised palatalisation, are incidental, and others, such as the preservation of the habitual are more obvious. That said, the various Celtic languages are thought to have more historically in common with the Italic branch of languages (the remaining instances of that being the various Romance languages) than they do with the Slavic ones.