Meaning of 懃 in Japanese

Words related to 懃

いんぎん(ingin) 【慇懃】

(adj-na, n) courtesy; intimacy; friendship
彼のいんぎんさは本心ではないかもしれない。
His cordiality may not be authentic.

いんぎんぶれい(inginburei) 【慇懃無礼】

(adj-na, n) hypocritical courtesy; superficially polite but rude in intent
あいつの慇懃無礼なものの言い方、思い出すだけで不愉快になるよ。
I find just the memory of his overly polite patronizing manner really offensive.

ばかいんぎん(bakaingin) 【馬鹿慇懃】

いんぎんていちょう(inginteichou) 【慇懃丁重】

いんぎんをつうじる(inginwotsuujiru) 【慇懃を通じる】

(exp, v1) to have a surreptitious sexual relationship with; to have an illicit love affair with

いんぎんなあいだがら(inginnaaidagara) 【慇懃な間柄】

These bank employees seem so politely insolent lately. I wonder what's behind it.