Where does “ulaan” come from?

ulaan (Dutch) comes from German Ulan, from Polish ułan, from Turkish oğlan, from Ottoman Turkish اوغلان, from Old Anatolian Turkish اوغلان, from Proto-Turkic *oglan — children.

ulaan (Dutch): uhlan, lightly armed lancer

Definitions

uhlan, lightly armed lancer

Ancestry of “ulaan”, step by step

Step	Language	Word	Meaning
1	German	Ulan	uhlan
2	Polish	ułan	uhlan
3	Turkish	oğlan	boy, male child; catamite; knave, jack in playing...
4	Ottoman Turkish	اوغلان	boy, lad, youth, a young male
5	Old Anatolian Turkish	اوغلان	youth, child, kid, teen; a young person
6	Proto-Turkic	*oglan	children

Every word from Proto-Turkic *oglan →Every word from Old Anatolian Turkish اوغلان →Every word from Ottoman Turkish اوغلان →