What is the longest one syllable word

Scraunched is the longest one syllable word in the modern English language. The longest archaic one syllable word is strengthed.

The most commonly cited is screeched, there's also scratched and other 9s, there is also a ten-letter word scraunched, from 1620.

The one most commonly cited is screeched (nine letters). However, one ought to mention also scratched, (all with nine letters).

Scraunched, from the 1620 English translation of Don Quixote, is the longest one syllable word. Thanks!