Where does “𒃻𒁀” come from?

𒃻𒁀 (Akkadian) comes from Sumerian 𒃻𒁀, from Sumerian 𒁀, from Akkadian 𒀀 — water; heir.

Ancestry of “𒃻𒁀”, step by step

Step	Language	Word	Meaning
1	Sumerian	𒃻𒁀	gift
2	Sumerian	𒁀	allotment, distribution, share
3	Akkadian	𒀀	water; heir