The word "infixion" is spelled with ənˈfɪksɪən in IPA phonetic transcription. This word refers to the act of inflicting something upon someone or something, typically used in the context of pain or suffering. The spelling of "infixion" follows the common English pattern of adding the suffix "-ion" to the verb stem "inflict". The "x" in the stem is replaced with "cs" to form "fix". Thus, the spelling of "infixion" can be explained through the phonetic transcription of its constituent sounds.