IPA: /ˌprɛpəˈzɪʃənəli/
KK: /prɛpəˈzɪʃənəli/
In a way that relates to or involves a preposition.
The words in the sentence were arranged prepositionally to show the relationship between the objects.
Prepositionally → It is formed from "pre-" (meaning before) and "positio" (from Latin, meaning position) and the suffix "-ally" (meaning in a manner). The word refers to something done in the manner of a preposition, which indicates a relationship in position or time before something else.
Think of 'pre-' meaning 'before' and 'positio' meaning 'position' — this helps you remember that 'prepositionally' refers to how something relates in position before something else.