'larvae-rearing' originates from the combination of 'larvae,' which is the plural form of 'larva,' and 'rearing,' which means to bring up or care for.

The term 'larvae-rearing' combines the Latin word 'larva,' meaning 'ghost' or 'mask,' with the English word 'rearing,' which has been used since the 14th century to mean 'to raise or bring up.'

Initially, 'larva' referred to the early stage of an insect's life, and 'rearing' meant to raise. The combined term 'larvae-rearing' specifically refers to the process of nurturing larvae.