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The kanji 験 is a phono-semantic compound, formed by combining the semantic component 馬 (horse) with the phonetic component 僉 (which signified "all" or "together"). Its origin lies in ancient Chinese, where it was created to represent the concept of inspecting or examining a horse. The core meaning was to assess a horse's qualities, such as its speed, strength, and temperament. The phonetic element 僉 (read as *qiān in Middle Chinese) provided the sound, while 馬 clearly anchored the meaning in the realm of equine evaluation. Historically, the character's meaning broadened significantly from this specific application. The process of testing a horse became a metaphor for verification and experimentation in a wider sense. This semantic expansion occurred within China long before the character's transmission to Japan. It arrived in Japan, along with the bulk of the Chinese writing system, during the 5th to 6th centuries CE, primarily through the importation of Buddhist sutras and Chinese classical texts. The Japanese adopted both the character and its evolved, abstract meaning of "test," "experiment," or "verification." An interesting linguistic note is the connection between the modern Japanese on'yomi reading "ken" and the original Chinese phonetic. The Middle Chinese pronunciation of 験 was *ngjæmH, which, through regular sound shifts, evolved into the Japanese Go-on reading "gen" and the Kan-on reading "ken." The character is a prime example of meaning abstraction, where a highly specific, pictographically-derived term (inspecting a horse) successfully transitioned to represent a fundamental abstract concept (testing in general), which is now its primary use in words like 試験 (shiken - examination) and 実験 (jikken - experiment).