glossen

English

Etymology

From gloss +‎ -en.

Verb

glossen (third-person singular simple present glossens, present participle glossening, simple past and past participle glossened)

(transitive, intransitive) To make or become glossy or like gloss
- 1869, Zoologist: A Monthly Journal of Natural History, page 1509:
  The plumage at this season undergoes a great change from that of winter, in addition to the white gorget and thigh-patch, the black mane and the white plumes on the neck, it thickens, glossens and becomes very rich in metallic lustre.