Which Tolkien work contains the poem “Errantry” and was published in 1962?

The Adventures of Tom Bombadil, published in 1962, contains the poem “Errantry.”

The volume is a collection of sixteen poems by J.R.R. Tolkien, presented with commentary that treats them as works from the traditions of Middle-earth. “Errantry” is one of the poems connected with the imaginative world surrounding The Lord of the Rings, although the collection also includes pieces with playful or independent subjects.

The title poem features Tom Bombadil, the enigmatic character who appears in The Fellowship of the Ring. The book should not be confused with Tolkien’s posthumously edited collections such as The Book of Lost Tales. It also differs from Leaf by Niggle, a short story published during Tolkien’s lifetime, and from The Monsters and the Critics, a collection of his scholarly essays.