the verb 'topple' emerged in the mid-16th century, originating as a frequentative form of the earlier verb 'top', which meant to fall or to cause to fall. this formation, using the suffix '-le' to indicate repeated or small-scale action, is a common pattern in english, as seen in words like 'dazzle' from 'daze'. the core concept is one of instability and falling from an upright or high position, a sense directly inherited from its root. over time, the meaning extended metaphorically from the physical act of falling to the political sense of overthrowing a government or leader, drawing a clear parallel between physical and figurative collapse.

the word is a simplex form. it is a frequentative verb formed from the english word 'top'.