prepositionally

/ˌprɛpəˈzɪʃənəli/
adverb
  1. In a way that relates to or uses a preposition.
    • She explained how the particle functions prepositionally in the sentence.
    • The word 'up' can be used prepositionally, as in 'walk up the hill.'
    • Some adverbs can also be used prepositionally, like 'down' in 'go down the stairs.'