I love etymology. Discovered an etymological dictionary published in 1890 when I was 11. That and Alice in Wonderland were my bed time books. I really enjoy your content. Thank you
wait, so the PIE *sed becomes greek kataHEDra > latin catHEDra > old french chaiEre > english chair. so seat is cognate with chair, but EVERY SINGLE SOUND that is actually cognate got lenited in chair, because french. amazing.