Carl in Newport Beach, California, wonders why the prefix be- functions so differently in the words behead and befriend. Also, why do the words decapitated and beheaded have different prefixes? And what the be-doing there in bemoan and belabor? Like...
Cara in San Diego, California, wonders why English has monologue and dialogue, but unicycle and bicycle rather than monocycle and dicycle. The dia- in dialogue means “through,” as in diagonal and diameter, not “two,” and duologue is the term for a...

