noun, noun which may take the genitive case particle 'no'
newly drawn artwork; original art; specially drawn artwork
Refers to illustrations, manga, or other artwork created specifically for a particular publication, product, or event, rather than being reused from existing material. Often used in contexts like bonus illustrations in books, exclusive art for merchandise, or newly commissioned pieces.
この画集には描き下ろしのイラストが多数収録されている。
This art book contains many newly drawn illustrations.
限定版には作者による描き下ろし漫画が付いている。
The limited edition comes with a specially drawn manga by the author.
Compound of 描き (kaki, the continuative form of 描く 'to draw') + 下ろし (oroshi, the continuative form of 下ろす 'to bring down; to create anew'). The combination conveys the idea of drawing something new from scratch for a specific occasion.