- fundamental (adj.)
[fundamental 词源字典]
- mid-15c., "primary, original, pertaining to a foundation," modeled on Late Latin fundamentalis "of the foundation," from Latin fundamentum "foundation" (see fundament). In music (1732) it refers to the lowest note of a chord. Fundamentals (n.) "primary principles or rules" of anything is from 1630s.[fundamental etymology, fundamental origin, 英语词源]