English

retrovector

From retro- + vector.

Latin retrō ‘back, backwards, behind’

Proto-Indo-European *weǵʰ- ‘to transport’

Proto-Indo-European *wéǵʰeti ‘to be transporting’

Proto-Italic *weɣō ‘to carry, convey’

Latin vehō ‘to carry, transport, bear’

Latin vector ‘carrier, transporter’

Today it means

noun A retroviral vector

Language periods are conventional ranges, not dates for this word.

Etymograph / retrovector