The word is portmanteau. I found this: "Portmanteau word "word blending the sound of two different words" (1882), coined by "Lewis Carroll" (Charles L. Dodgson, 1832-1898) for the sort of words he invented for "Jabberwocky," on notion of "two meanings packed up into one word." As a noun in this sense from 1872." on Dictionary.com after stumbling across it in Wikipedia. MY word would be "combiage"= combine+verbiage

The word is portmanteau. I found this: "Portmanteau word "word blending the sound of two different words" (1882), coined by "Lewis Carroll" (Charles L. Dodgson, 1832-1898) for the sort of words he invented for "Jabberwocky," on notion of "two meanings packed up into one word." As a noun in this sense from 1872." on Dictionary.com after stumbling across it in Wikipedia. MY word would be "combiage"= combine+verbiage As far as the new words that would be neologism as defined by MW: Simple Definition of neologism

: a new word or expression or a new meaning of a word