al.mug.gim denotes a material brought from Ophir and made into supports and musical instruments.

The attested plural noun denotes a material brought from Ophir, then used for supports in the LORD's and king's houses and for lyres and harps.

1. Material for construction and instruments · dominant

   In 1 Kings 10:11, the masculine plural absolute form occurs among cargo brought from Ophir. In 1 Kings 10:12, the same form names the material made into supports for the house of the LORD and the king's house, and into lyres and harps; the APB renders the clauses with “almug wood.”

   1 Kings 10:111 Kings 10:12

In the Anselm Project Bible: The APB presents the term as “almug wood” in both verses, first as cargo from Ophir and then as material used for supports and instruments. The verse is read as a whole.