fugleman n.

"to soar through air; move through the air with wings," Old English fleogan "to fly, take flight, rise into the air" (class II strong verb; past tense fleag, past participle flogen), from Proto-Germanic *fleugan "to fly" (source also of Old Saxon fliogan, Old Frisian fliaga, Middle Dutch vlieghen, Dutch vliegen, Old High German fliogan, German fliegen, Old Norse flügja), from PIE *pleuk-, extended form of root *pleu- "to flow."

Meaning "go at full speed" is from c. 1300. In reference to flags, 1650s. Transitive sense "cause to move or float in air" (as a flag, kite, etc.) is from 1739; sense of "convey through the air" ("Fly Me to the Moon") is from 1864. Related: Flew; flied (baseball); flown; flying. Slang phrase fly off the handle "lose one's cool" dates from 1825.

Proto-Indo-European root meaning "man."

It forms all or part of: alderman; Alemanni; fugleman; Herman; hetman; landsman; leman; man; manikin; mannequin; mannish; mensch; Norman; ombudsman; yeoman.

It is the hypothetical source of/evidence for its existence is provided by: Sanskrit manuh, Avestan manu-, Old Church Slavonic mozi, Russian muzh "man, male;" Old English man, mann "human being, person; brave man, hero; servant, vassal."