What is the meaning of Es-?

Used to form names of drugs with a chiral center in the S configuration.

marks a first person singular subject; I

indicates movement away or separation

variant of a-

indicates movement away or separation

indicates movement away or separation

ex-

indicates movement away or separation

indicates movement away or separation

indicates separation

indicates intensification

indicates separation

indicates removal or elimination

indicates intensification

out, ex-

Source: wiktionary.org