Cuts into three parts

• Creates three equal parts
• Turns into a Mercedes-Benz logo, say, as a circle
• Divides into three equal parts
• Divides in three
• Cuts geometrically
• Divides into thirds
• Divides into three parts
• Divides into three
• Makes three out of one

Wiktionary Word definitions in Wiktionary
vb. (en-third-person singular of: trisect )