Given how our US cousin change the English Langage spellings, who knows
UK English Pedometer is step counter
however in US English they spell the English word Paedophile as Pedophile ( US English) so maybe, if we took things too literally in US English the word Pedometer is used to count the number of Pedophiles that walk past.
I appreciate the Americans see England as the 'land of extra vowels', but much of English comes from French, so the addition or removal of the vowel 'a' in this context really does change the meaning.
I do agree with some US spellings, e.g Sulfur instead of Sulphur for example, the former is now accepted,
I like your thinking though, sep for any pet owners out there.
@zleap 😑