Explore each form from the oldest known stage to today.
Historical forms are not available yet. The current form is shown as a reference.
The kanji 幹 is a phono-semantic compound, formed by combining a semantic element and a phonetic element. The left component 干 originally depicted a shield (a different character from the modern 干 meaning "dry" or "interfere") and here functions primarily as a phonetic component (kan) to suggest the pronunciation, while also contributing a sense of "main part" or "offensive weapon." The right component, 木 (ki), means "tree" and provides the core semantic meaning related to wood or plants. The original meaning was the main pillar or central pillar of a building, which was metaphorically extended to the central, supporting part of a tree—the trunk. Historically, the character 幹 appears in Chinese bronze inscriptions and seal scripts. Its earliest forms clearly show the combination of 干 and 木. Over time, the script standardized into the modern form. The conceptual link between a building's main pillar and a tree's trunk is straightforward, and from this core idea of a "central support," the meaning further extended abstractly to "main part," "core," and ultimately to a person's fundamental "ability" or "capability," which is seen as the central supporting faculty for accomplishing tasks. The character, along with the vast majority of the kanji system, was introduced to Japan from China, primarily between the 5th and 8th centuries via Korean peninsula and through direct cultural exchange with Chinese dynasties. It was adopted into the Japanese writing system as a logographic character, retaining its core meanings. A significant cultural note is the use of 幹 in modern Japanese for titles like 学芸会幹事 (gaku-gei-kai kanji) or 実行委員幹事 (jikkō iin kanji), meaning "executive director" or "manager," a direct reflection of the "main pillar" or "central support" etymology, indicating the person who forms the core of an organization or event.