'Grammatical' or 'linguistic meaning' depends on the occurrence of a form in significant situations defined only or at least primarily in terms of the linguistic environments. [...] The linguistic meaning of a morpheme can be defined in terms of several criteria: (1) the types of construction in which it occurs, (2) its frequency of occurrence, and (3) its productiveness in new combinations. The first of these are linguistically the most meaningful. [...]
- Nida (1948), a pag.430