from the GNU version of the Collaborative International Dictionary of English
- adj. Belonging to that space of time in which the moon performs one revolution, from ascending node to ascending node. See Dragon's head, under dragon.
from The Century Dictionary and Cyclopedia
- Pertaining to the nodes of the moon's orbit (called the dragon's head and tail). Also draconitic.
Sorry, no etymologies found.
But the stiffening of the fold by the thorn which holds it out is very like the action of a ship's spars on its sails; and absolutely in many cases like that of the spines in a fish's fin, passing into the various conditions of serpentine and dracontic crest, connected with all the terrors and adversities of nature; not to be dealt with in a chapter on weeds.