いわゆる
いわゆる · iwayuru · JLPT N3 · na-adj
the so-called
🗣️ いわゆる = 言わ (iwa, say) + ゆる (old passive ending): what people say
It comes from classical Japanese: 言う (iu, to say) plus the old passive ending ゆ, which takes the form ゆる before a noun. So いわゆる X literally means the X that people say, which is where so-called comes from.