Where does “keratein” come from?
keratein (English) comes from English -ein, from English -ín, from English in, from Middle English in, from Old English in, from Proto-West Germanic *in.
keratein (English): The easily digested reduction product of keratin, in which the disulfide links are reduced to SH groups, the individual peptide chains having been separated
Definitions
- The easily digested reduction product of keratin, in which the disulfide links are reduced to SH groups, the individual peptide chains having been separated
Ancestry of “keratein”, step by step
| Step | Language | Word | Meaning |
|---|---|---|---|
| 1 | English | -ein | Used in a compound distinguished from a compound... |
| 2 | English | -ín | Attached to a word (usually a verb) to denote a protest, demonstration or other type of gathering characterized by the activity denoted by the base word |
| 3 | English | in | Used to indicate location, inclusion, or position... |
| 4 | Middle English | in | Any kind of accomodation; particularly; A home or... |
| 5 | Old English | in | in; Alternative form of inn |
| 6 | Proto-West Germanic | *in | — |