What does the word etymology mean in this sentence?

the word computer dates to the 1600s, so if you want to know the term’s etymology, you will have to start your research in that time period.

the study of how research has been conducted over time

the study of a word's origin and changing meanings

the study of machines used to complete academic tasks

the study of the sixteenth and seventeenth centuries

Explanation:

the study of a word's origin and changing meanings

imparadis't in one anothers arms  

the happier eden, shall enjoy their fill  

of bliss on bliss, while i to hell am thrust,  

where neither joy nor love, but fierce desire,  

among our other torments not the least,  

still unfulfill'd with pain of longing pines;  

yet let me not forget what i have gain'd  

from their own mouths; all is not theirs it seems:  

one fatal tree there stands of knowledge call'd,  

forbidden them to taste: knowledge forbidd'n?  

suspicious, reasonless. why should their lord  

envie them that? can it be sin to know,

its d because i know