ETYM Old Eng. asch, esh, AS. aesc; akin to Old High Germ. asc, Swed. and Dan. ask, Icel. askr, Dutch esch, German esche.
1. Any of various deciduous pinnate-leaved ornamental or timber trees of the genus Fraxinus; SYN. ash tree.
2. Strong elastic wood of any of various ash trees; used for furniture and tool handles and sporting goods such as baseball bats.
3. The residue that remains when something is burned.

Any tree of the worldwide genus Fraxinus, belonging to the olive family Oleaceae, with winged fruits. The mountain ash or rowan belongs to the family Rosaceae.

To convert into ashes.