An Etymological Dictionary of Astronomy and Astrophysics
English-French-Persian

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

M.E., from O.Norse börkr "bark."

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."