nonloanword

A nonloanword is a word that originated within a language itself rather than being borrowed from another language. It is typically formed through native morphological processes such as derivation, inflection, or compounding, and may also undergo semantic change over time. Nonloanwords contrast with loanwords, which are taken from another language and adapted to the borrowing language’s phonology and morphology. A related concept is the calque, or loan translation, where a phrase or expression is translated element by element from another language.

Nonloanwords often include basic vocabulary and core terms that have long been part of a language's heritage. For example, English words such as water, mother, and house are generally treated as nonloanwords, having developed within the language’s own history. In Japanese, native terms such as mizu (water) and hana (flower) are typically cited as nonloanwords in contrast to Sino-Japanese loanwords that come from Chinese.

The boundary between nonloanword and loanword can be fluid in practice. A word borrowed in the past and fully assimilated may be treated as a native term in everyday use, though etymological dictionaries would still mark its origin as a loanword. Conversely, a word created entirely within a language through processes like compounding or derivation remains a nonloanword even if it now appears widely in other languages’ discourse through translation or influence.

In linguistics, classifying lexemes as nonloanwords helps researchers trace language history, contact, and internal development, and it informs etymologies and lexical databases.