'alcornoco' originates from Spanish, specifically the word 'alcornoque', where 'al-' is an Arabic definite article and 'quercus' meant 'oak'.

'alcornoque' transformed into the English word 'alcornoco' through adaptation and usage in English-speaking regions.

Initially, it meant 'oak tree', but over time it evolved into its current meaning of 'a specific type of cork tree'.