Just, just, exactly.

Juvel, jewel, gem.

Juvelskrin, jewel-box, jewel-casket.

Jäf, challenge.

Jäfva, to challenge.

Jägare, hunter, huntsman.

Jämmer, lamentation.

Jämmerlig, miserable.

Jäsa, to ferment.

Jäst, yeast.