An Etymological Dictionary of Astronomy and Astrophysics

The external covering on the trunks, boughs, and branches of trees.

Etymology (EN): M.E., from O.Norse börkr “bark.”

Etymology (PE): Kâlun, from Mâzandarâni kâlun “bark,” variants (Dâmqân) kul “bark,” (Tâti) lo “bark,” (Yazd, Mâzandarân) kol “bark,” (Nâin) kuluz “egg shell,” (Aftar) cokola “egg shell, pistaschio shell,” pukel, → shell, keler, → scalp, probably related to (Khotan Sacca) karastra- “fur garment,” (Waxi) kurust “bark of tree,” from PIE root *(s)ker- “to cut off,” from which are derived L. cortex “bark,” corium “thick skin,” scortum “hide,” and Persian carm “leather.”