エイ, いとな.む, いとな.み
camp, perform, build, conduct (business)
JLPT0 G13 S0 F5000
As per ?# as described in 榮 (curve about) + an abbreviated form of 官 (wrapped about/enclosed) → circular military encampment (compare 軍), illuminated by torchlight (compare the idea of illumination in 螢) → *camp*; *barracks* → *conduct* (business); *perform*; *build* (← set up camp).
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