'alkarsine' originates from 'German', specifically the word 'Alkarsin', where 'Alk-' meant 'alkyl' and 'arsin' referred to 'arsine'.

'Alkarsin' changed from 'German' word 'Alkarsin' and eventually became the modern English word 'alkarsine'.

Initially, it meant 'a compound of arsenic', and this meaning has largely remained the same in modern usage.