English
frameshift
From frame + shift.
Proto-Indo-European *pró ‘toward, leading to’
…
Proto-Germanic *framjaną ‘to further, promote’
Proto-West Germanic *frammjan ‘to promote’
Old English fremman ‘to profit, avail, advance’
Middle English framen ‘to construct’
English frame
Proto-Indo-European *skey- ‘to cut’
…
Proto-Germanic *skiftijaną ‘to divide’
Proto-West Germanic *skiftijan
Old English sċiftan ‘to divide’
Middle English schiften ‘to split’
English shift
Today it means
noun A frameshift mutation.
Language periods are conventional ranges, not dates for this word.
Etymograph / frameshift