partir
leave
part
to separate or divide
+
-ir
verb suffix
Partir means to leave and can be thought of as part0 (to separate0) + -ir1 (verb suffix1), as leaving often involves separating from a place or people.
verb
  1. leave
    To leave or depart from a place
    El tren parte a las 8 de la mañana. // The train leaves at 8 in the morning.
  2. divide
    To divide or split something into parts
    Vamos a partir el pastel en ocho porciones. // Let's divide the cake into eight portions.