祥
ショウ, さいわ.い, きざ.し, よ.い, つまび.らか, あき, さか, さち, ひろ, まさ, やす, ゆき, よし, あきら, さき, さむ, ただ, なか, なが
auspicious, happiness, blessedness, good omen, good fortune
JLPT1 G7 S10 F1273
As per 羊# (abundant) + 示 altar/the supernatural → propitious *omen* of abundance to come → *happiness*.
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