Where does “microorigami” come from?

microorigami (English) comes from English origami, from Japanese 折り紙, from Japanese 紙, from Middle Chinese 紙.

microorigami (English): Very small-scale origami; the design and fabrication of self-folding polymer films used to make three-dimensional structures

Definitions

Very small-scale origami; the design and fabrication of self-folding polymer films used to make three-dimensional structures

Ancestry of “microorigami”, step by step

microorigami traces back through two separate lines of ancestry.

via English origami

Step	Language	Word	Meaning
1	English	origami	The Japanese art of paper folding; A piece of art...
2	Japanese	折り紙	origami
3	Japanese	紙	paper
4	Middle Chinese	紙	—

via English micro

Step	Language	Word	Meaning
1	English	micro	Small, relatively small; short form of...
2	Ancient Greek	μικρός	little, small
3	Proto-Indo-European	mēy-	soft, tender, dear

Every word from Middle Chinese 紙 →