韦

wei

(soft) leather

韦布 Coarse leather clothing (symbolizing humility)

韦弦 Leather and strings (metaphor for self-discipline)

an abundance (丰) of tanned, processed, and neatly wrapped (⊃) soft skins 

伟

wei

great, mighty,

extraordinary

伟大 great (used for ideals, leaders, or deeds);

伟人 great person (e.g., historical giant)

雄伟 majestic (describing mountains or architecture)

 伟业 great undertaking; 壮伟 magnificent / imposing

A superhero (亻) wearing a leather (韦) cape looks mighty

围

wei

to surround, to encircle

to enclose / fence in

enclosure

围攻 to besiege (encircling a city); 围城 besieged city

围栏 fence; 围绕 to revolve around (abstract)

a fence (囗) around a precious piece of leather (韦) encircles it to protect it

违

wei

to violate / disobey

to separate; to go against

违背 to violate (a rule or promise); 违法 illegal (lit. "against the law")

违约 to breach a contract; 违规 to break regulations

to walk (⻌)  with leather (韦) banners violating the curfew and going against the authorities