I would like to create a list of terms, from beginner to expert, using as many terms as possible which represent different levels of expertise. · ex (n. ) is a casualism in the sense of a former spouse or lover the plural of ex is exes, and the possessive is exs — but be aware that many readers will find these forms odd … · 6 there are many cases of prefixes changing their forms. Are there some … Post facto also means after the fact, so it should be sufficient. But what is the origin of the usage as a prefix in the words like … · ex is also interesting because 1) someones ex is the person they used to be married to or used to have a romantic or sexual relationship with and 2) ex- as a prefix is added to nouns … But they both mean the same thing. Ad- becomes a- in front of b, e. g. I dont think ex has a negative … · in legal language i have come across the term ex post facto. Is short for exempli gratia, and is in common use to introduce an example within a sentence. Does ex have a full form? My brothers wife is my sister-in-law, and so she is considered to be my relative. Submit a sample of academic writing, e. g. , a dissertation chapter. This is commonly … Another take is that ex is a compound form, while former is an adjective. For example ex- can change to ef- in front of f, e. g. I have constructed by myself: But if my brother gets divorced, is my former sister-in-law still considered to be a relative? Google dictionary has this information about the origin of ex: Isnt ex redundant in this phrase? · i was thinking that this sort of anticipatory assimilation in which the voicing from the vowel following the ks makes the gz, also applies when the following sound is a voiced … Newbie novice rookie · ex-wife, ex-boyfriend. That would be the difference in usage.