Complex sentence: The name "Wojtek" or "Wojciech" is an old Slavic name derived from two words: "woj" (the stem of "wojownik", warrior, and "wojna", war); and "ciech", enjoyment.
Split into simpler sentences: The name "Wojtek" or "Wojciech" is an old Slavic name. It derives from two words: "woj" (the stem of "wojownik", warrior, and "wojna", war); and "ciech", enjoyment.