The word 'traversal' is built upon the verb 'traverse', which originates from the Latin past participle transversus, meaning 'turned or laid across'. This Latin term itself is a compound of the preposition trans- ('across, beyond') and the verb vertere ('to turn'), a common PIE root (wert-) related to rotating or changing direction. The literal sense of 'turning across' evolved into the general meaning of passing or moving across an area or obstacle. By adding the noun-forming suffix '-al', which denotes an action or its result, the word 'traversal' was created to specifically name the act or process of making such a crossing, a concept later adopted in fields like computing to describe systematically visiting all nodes in a data structure.

Structure: traverse (to cross) + al (noun suffix) traverse: From Latin transversus (turned across, lying across), from trans- (across) + vertere (to turn). Acts as the core verb root. al: A Latin-derived suffix forming nouns of action from verbs, indicating a process or instance of the action.