trastabillar
stumble
tras-
across, over
+
stable
steady, firm
+
-ar
verb ending
Trastabillar means to stumble. It can be thought of as tras-0 (across, over0) + stable1 (steady, firm1) + -ar2 (verb ending2), implying to move across in an unsteady manner.
verb
- stumbleTo stumble or stagger while walking.El hombre ebrio trastabilló al salir del bar. // The drunk man stumbled as he left the bar.