Meaning of 過去遺産 in Japanese

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Definition of 過去遺産

いさん(isan) 【遺産】

(n) inheritance; bequest; legacy; heritage
彼は莫大な遺産を受け継いだ。
He inherited of a great fortune.

かこ(kako) 【過去】

(n-adv, n) the past; bygone days; the previous
私はいつまでも過去にこだわらないようにと心がけている。
I try not to dwell on the past.
a past (i.e. a personal history one would prefer remained secret); one's past
(ling) past (tense); preterit; preterite
(Buddh) previous life