the english word stampede is derived from the spanish word estampida. pronounced /stæm’pi:d/ in english, it’s original pronunciation is /ɛstam’pi:da/. english and spanish have different phonetic inventories and language rules. spanish does not start words with the /st/ sound in the onset, but will use /ɛst/ to keep the flow of the word. estampida ending with an a is because spanish is a gendered language and nouns will end with an o or an a. english does not have gendered nouns, so we did not keep the a ending sound. we kept the stressed syllable the same. spanish pronunciation has the long a sound that we rarely use and we use the æ that we are more comfortable pronouncing.