There is another: https://en.m.wikipedia.org/wiki/Mistel

Maybe ご多忙中 (ごたぼうちゅう) is a good example? Something like “Excuse me for interrupting you when you are so busy”.

Edit: 盥回し (たらいまわし) - handing off a problem to someone else to evade responsibility

I can’t think of any off the top of my head, but might reply again later. You could also check out some 四字熟語, although those are more like proverbs rather than words. Eg. http://www.edrdg.org/projects/yojijukugo.html

4 ears > 2 ears

Wiktionary says it’s the other way around (until originates from til) and both til and till are correct: https://en.m.wiktionary.org/wiki/till#Etymology_1