As a verb sorns
As a noun sorus is
(mycology|lichenology) any reproductive structure, in some lichens and fungi, that produces spores.
(dated) to impose upon another for food and lodging.
- The traveler sorned his less than willing hosts.
(mycology, lichenology) Any reproductive structure, in some lichens and fungi, that produces spores.
(botany) A cluster of sporangia on the edge or underside of a fern frond.