Rarely used words in the Psalter - 2

In Psalm 1 there is a word used only once in the Psalter: וְעָלֵהוּ and its leaf. The leaf of the righteous will not fade. This is (perhaps) reflected in the vision of Ezekiel 47:12 which provides the inspiration for the Revelation of John and his vision of the tree of life.

like a tree transplanted by streams of water
that yields its fruit in its time
and its leaf does not wither
and in all that it does, it prospers