köken: 15th century, from Middle French, from Old French visiere. The sense “sight” (late 16th century) under influence of related visieren, anvisieren (“to keep in view, aim at”).
aile: im Visier, ins Visier geraten, ins Visier nehmen, offenes Visier, Reflexvisier
visor (part of a helmet, arranged so as to lift or open, and so show the face) · eyeshade (type of headgear for shielding the eyes from glaring light) · brim or peak (part of a cap)
köken: Inherited from Middle Russian козырекъ (kozyrek) (att. 1630), from Middle Russian козырь (kozyrʹ), further origin unclear. By surface analysis, ко́зырь (kózyrʹ) + -ёк (-jók). Akin to regional (Bialostok) Polish kozyrek, but that is quite likely a Russian borrowing.
взять под козырёк
Пройдя невыразимо угнетающий двор, мы оказались перед дверью, над которой торчал чугунный козырёк с завитками и амурами в купеческом духе.