Complex sentence: The Dutch word for the poorest form of Dunglish, "Steenkolenengels" ("Coal English"), goes back to the early twentieth century when Dutch port workers used a rudimentary form of English to communicate with the personnel of English coal ships.
Split into simpler sentences: The Dutch word for the poorest form of Dunglish is "Steenkolenengels" ("Coal English"). This term goes back to the early twentieth century when Dutch port workers used a rudimentary form of English to communicate with the personnel of English coal ships.