*late Middle English: from Old French, from medieval Latin transparent- ‘shining'shining through’through', from Latin transparere, from trans- ‘through’'through' + parere ‘be'be visible’visible'.{{Citation needed|date=April 2021}}
*late 16th century (in the Latin sense): from Latin translucent- ‘shining'shining through’through', from the verb translucere, from trans- ‘through’'through' + lucere ‘to'to shine’shine'.{{Citation needed|date=April 2021}}
*late Middle English opake, from Latin opacus ‘darkened’'darkened'. The current spelling (rare before the 19th century) has been influenced by the French form.{{Citation needed|date=April 2021}}
