IPA: //ˌdaɪ.əˌzoʊ.tɪˈzeɪ.ʃən//
KK: /dɪˌæzəˈtaɪʒən/
The process of converting an aromatic primary amine into a diazonium compound, usually using nitrous acid.
The chemist performed diazotization to create the diazonium compound needed for the reaction.
Diazotization is formed from "diazo" (from Greek "dia" meaning through and "azo" meaning nitrogen) and "-ization" (a suffix indicating a process or action). The term refers to the process of introducing a diazo group into a compound, specifically involving nitrogen.
Think of 'through' ('dia') and 'nitrogen' ('azo') to remember that 'diazotization' is the process of introducing nitrogen into a compound.