'sweet-related' originates from the combination of 'sweet' and the suffix '-related', where 'sweet' meant 'having the taste or flavor characteristic of sugar, honey, etc.' and '-related' meant 'connected or associated with'.

'Sweet' comes from Old English 'swēte', and '-related' is derived from Latin 'relatus', meaning 'brought back'.

Initially, 'sweet' meant 'pleasing to the senses', and '-related' meant 'connected'. Over time, 'sweet-related' evolved to specifically mean 'connected to sweetness'.