ヨ, あた.える, あずか.る, くみ.する, ともに, とも, ゆ
bestow, participate in, give, award, impart, provide, cause, gift, godsend
JLPT3 G7 S3 F308
The relevant bronzeware inscription form shows two objects meshing, to which a seal inscription form adds two pairs of hands → raise an object in unison (compare 擎) → *work jointly*; *participate*. *Give* and *grant* are borrowed meanings.
[Full Kanji Etymology List]