By Morphology, Pronunciation

It sounds a little more like morphology, but I could be wrong. There are numerous cases where a particular alternation between two vowels (or consonants) occurs in this way. They occur in both the Germanic and Latinate components of English. find - found; bind - bound; grind - ground;...

as words become integrated into every day life the trend is for the patterns of the "new" language to take over, in terms of both spelling, morphology (endings) and pronunciation. Forums is becoming the standard now, as is medias. As for status, both sound a bit clumsy and if I was writring...