切り紙

Kirigami joins two Japanese words: 切り (kiri, 'cutting,' from the verb 切る kiru) and 紙 (gami/kami, 'paper'). The compound appeared in Japanese educational materials in the mid-20th century as a name for cut-paper classroom activities, and reached English audiences through Florence Temko's craft books published in the 1960s by Doubleday in New York. The cutting of paper was already ancient in Japan, going back to the zigzag ornaments called shide used in Shinto ritual and to kirie (切り絵, 'cut picture'), the silhouette-cutting tradition. Kirigami was a modern name for practices that predated the word by many centuries.

The distinction from origami matters. Origami, from 折り (ori, 'folding') plus 紙 (kami, 'paper'), names an art that prohibits cutting: a single uncut sheet is folded into form, and the discipline comes partly from that constraint. Kirigami relaxes the rule, allowing the paper to be cut as well as folded, often to make a pattern that opens into a three-dimensional structure when unfolded. The Japanese cutting tradition closest to kirigami was kirie, which produced silhouette images by cutting rather than folding. Kirigami borrowed kirie's scissors but added origami's fold-to-reveal logic.

American publishers and educators seized on kirigami in the early 1960s as a classroom project more accessible than origami's strict discipline. Temko's books put kirigami into school curricula across the United States, and the word entered English dictionaries during this period, defined primarily in educational and craft contexts. Japan itself largely continued to call similar practices kirie or to subsume them under origami; kirigami as a distinct term was more robustly commercial in American usage than in Japanese. The word had, in effect, become more English than Japanese.

In the 21st century, kirigami acquired new domains. Mechanical engineers at MIT and Stanford began using kirigami-inspired cut patterns to create materials that stretch, flex, or self-assemble, publishing papers on kirigami metamaterials in scientific journals from around 2015 onward. Pop-up book designers and architects cite kirigami's geometry for structures that fold flat and deploy in three dimensions. The word has moved from classroom scissors to research laboratory, carrying the same cut-and-fold insight across scales from centimeters to structural meters.