サン, テン, かいこ, こ

silkworm

JLPT1 G6 S10 F2272

Abbreviated form# of attach + 虫 insect/creature → earthworm(s) attached to the ground by setae (bristles). However, 蚕 has been used as an abbreviated form of 蠶 since the Tang Dynasty. 蠶 is as per as described in (deep penetration) + 虫 insect/creature (doubled) → *silkworm* (deeply ensconced in a cocoon).

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