勣
セキ, シャク, いさお, つむ.ぐ
merit, achievement
JLPT0 G13 S0 F5000
As per 責# (pile) + 力 power/energy → *meritorious deed*; *achievements*; *exploits* (← figurative pile of deeds/achievements). For the conceptual link between achievements and a pile, compare 績.
[Full Kanji Etymology List]