9 letters · 15 points in Scrabble
noun a bar chart representing a frequency distribution; heights of the bars represent observed frequencies
originProbably from Ancient Greek ἱστός (histós, “mast”) + γράμμα (grámma), although it is sometimes claimed to have been derived from historical + diagram; coined in 1891 by English mathematician Karl Pearson.
Etymology from Wiktionary, CC BY-SA 3.0