不

Pictogram (象形): the calyx of a flower. 不 was composed into a phono-semantic character with the pictograph for mouth (口), to form 否 (OC *brɯʔ, *pɯʔ), representing “no” (negation). This composed meaning then spread back to the original character 不, making it a synonym of 否. A new character of 柎 (OC *po) was eventually created to represent the original meaning of calyx.

Following Shuowen’s interpretation, Karlgren and Wieger interpret it as a bird flying toward the sky (一). The sky being the limit for the bird, thus the idea of negation.

Old Chinese had two sets of negatives: the initial *p-series and the initial *m-series. 不 is the prototype of the *p-series of negatives. Although it is the usual Literary Chinese negative attested from the oracle bone script down, its current usage is now confined to Mandarin dialects. In the oracle bone inscriptions, a total of five negative particles can be found: 不, 弗, 毋, 勿 and 非. With the exception of 非 (discussed later), the remaining can be neatly organised into the following system:

Takashima (1996) argued that the *m-type negatives are modal (i.e. negative verbs which are thought of as controllable by the Shang), whereas the *p-type negatives are non-modal (imply uncontrollability; actions which are beyond the control of living persons).

In the *p-series, 不 usually goes with intransitive verbs in the oracle bone script, and 弗 (OC *pɯd) with transitive ones, although there are some glaring exceptions. Little or no pattern can be discerned in the *m-type category. Takashima (1996) also proposed that the difference between the two vowel series was whether they preceded “stative, eventive, passive” (*-V series) or “non-stative, non-eventive, active” (*-ɯd series) verbs.

It is possible that the two parallel series of negatives in Old Chinese represent a fusion of the common Sino–Tibetan *ma (“no, not”) (carried by the eastward-migrating early Sino–Tibetans) and an indigenous negation system in Central China, and that the merger had been complete by the Shang times. Compare a similar system in Proto-Tai: *ɓawᴮ (“not [strong form 1]”), *boːᴮ (“not [strong form 2]”), *miːᴬ (“not [weak form]”); Thai บ่ (bɔ̀ɔ, “(literary, archaic, dialectal) not”).

The development from Old Chinese to Middle Chinese was not regular. The character 不 replaced 弗 (OC *pɯd, MC *piut), to respect the naming taboo for Emperor Zhao of Han, although the pronunciation has remained in nearly all topolects (e.g. Beijing Mandarin bù, Guangzhou Cantonese bat¹, Meixian Hakka bud⁵, Shanghainese Wu peq). The Modern Standard Mandarin pronunciation is also from this checked coda word, but this word escaped from regular sound changes during its evolution to the modern pronunciation bù. The expected reading is fu (tone undetermined), with labiodentalisation. The rising-tone pronunciation had a Middle Chinese homophone 否 (“not”), which is now primarily used in compounds, and demonstrates the regular development into modern f-. Another example of a high-frequency word escaping this sound change is 父 (OC *paʔ, *baʔ, “dad”), which resulted in the late coinage of the character 爸 (bà).

不 is cognate with other negation particles in the *p-type category:

* 弗 (OC *pɯd, “not”);

* 非 (OC *pɯj, “not be; not”) – can be safely regarded as a fusion of 不 (OC *pɯ, *pɯʔ, *pɯ', “not”) and 惟 (OC *ɢʷi, “to be”);

* 否 (OC *brɯʔ, *pɯʔ, “not; to be wrong”);

* 匪 (OC *pɯjʔ, “it is not; to be not”); and

* 棐 (OC *pɯjʔ, “it is not; to be not”).

Cognate with Thai บ่ (bɔ̀ɔ, “(literary, archaic, dialectal) not”) (Schuessler, 2007).

Onomatopoeic.