The nomenclature of the esters consists of naming the two alkyl groups that start from the oxygen alphabetically, ending the name in ether. Let's see some examples:

ether nomenclature

Ethers can also be named as alkoxy groups.

ether nomenclature

Cyclic ethers are formed by substituting -CH2- of the cycle by -EITHER-. This change is indicated by the prefix oxa- .

ether nomenclature