赴
フ, おもむ.く
proceed, get, become, tend
JLPT1 G7 S9 F1649
卜 + 走. However, 卜 here likely functions as it does in 仆 and 訃, namely, as an abbreviated form# of 菐 as described in 僕 (servant). 赴 adds 走 run → servant rushing to *attend* to his master → *rush up toward*; *go/proceed to* (hurriedly); *approach*.
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