The word "would" came from the Germanic as wolde and the L was originally pronounced. However, over time the pronunciation changed. In the US in the 1800s, Noah Webster made one of the first US dictionaries, and kept the spelling despite the fact that most Americans already pronounced it the same as "wood." It may be that "could" (which came from coude) may have adopted the spelling from "would."
The 'l'
L
could, would
the letter -L-
The silent letter in the word "walk" is the letter "l."
The letter which is silent in the word folk is the letter L.
The word "yolk" is pronounced "/yōk/" so it has an silent l since its not pronounced.
See the word Llama. The first L is silent.
the letter "L" is silent
The letters "l" and "d" are silent in the word "could".
The letter 'L' is silent in the word 'could'.
Yes, the "l" in "calm" is typically silent when pronounced. The word is pronounced as "kam."