Webster’s Revised Unabridged Dictionary · 1913
Kinglet
King′let (kĭng′lĕt), n. 1. A little king; a weak or insignificant king. Carlyle.
2. (Zoöl.) Any one of several species of small singing birds of the genus Regulus and family Sylviidæ.
☞ The golden-crowned kinglet (Regulus satrapa), and the rubycrowned kinglet (R. calendula), are the most common American species. The common English kinglet (R. cristatus) is also called golden-crested wren, moonie, and marigold finch. The kinglets are often popularly called wrens, both in America and England. [1913 Webster]