This is the 5400th most frequent Polish word.
stopach
"Stopach" is the locative plural form of "stopa," meaning "feet" in English.
Here, 'stopach' again literally refers to the feet, this time in relation to a sensation of pain experienced after physical activity.
Czułem ból w stopach po długim spacerze.
I felt pain in my feet after a long walk.
In this case, 'stopach' is used metaphorically to refer to bases or supports, in this instance, the foundational structure of a house.
Dom jest zbudowany na solidnych stopach fundamentowych.
The house is built on solid foundation bases.
In this context, 'stopach' refers to the literal parts of the body, indicating the feet walking on grass.