Agatha Christie's Poirot

Is Mabelle pronounced like Mabel or like May-belle or like the French words for "my beauty" — mah belle — in the Beatles song Michelle? This is a decision you'll have to ponder and a question you'll have to answer and a correction you'll need to make time and again. Despite these difficulties, the style for all names belle-related may propel this one upward.

Sophisticated and sweet, delicate but substantial, Madeleine is the classic French variation of Magdalene.

This name made famous in the New Testament has gone from crusty grandma to sleek and chic in recent years, or is it months? The name's image is perhaps helped by the fact that Mary Magdalene was one of the most intriguing women inthe Bible, both a saint and a sinner.

Maggie is a cute, earthy short form that has been in style for several decades now, still sometimes used as an independent name by such parents as Jon Stewart. First used in Scotland, it got a large bump in popularity via the 1971 Rod Stewart hit song "Maggie May." Today's Maggie might just as well be short for a more adventurous name such as Magdalena or Magnolia as for the classic Margaret.

Maggie Gyllenhaal was born Margaret.

Though ancient, Marcus now sounds more current than Mark, in tune with today's trend towards us-ending Latinate names.

Margaret is derived from the French Marguerite, which in turn came from Margarita, the Latin form of the Greek Margarites. Margarites was based on the Old Persian word margārīta, meaning "pearl."

As a highly popular girls’ name in all Spanish-speaking countries, this saintly Latin variation of Mary retains a timeless beauty. Through the centuries, Maria remains one of the most widely-used girl names starting with M.

The ubiquitous French version of Mary came into the English-speaking world in the nineteenth century. In the United States, Marie was a huge hit at the turn of the last century and for the ensuing fifty years, becoming the seventh most popular name in the country for three years, from 1901 to 1904.

For a name that was in the Top 20 for a whole decade – the 1930's – Marilyn has attained the status of almost a one-person name. Just say the name Marilyn, and most people will know who you mean. Yet strangely enough, though Marilyn Monroe (born Norma Jean and renamed in tribute to earlier star Marilyn Miller) was the sex symbol of her generation, very little stardust adhered to her name. In fact, when Mariah Carey wished to honor the star in her daughter's name, she chose to call her Monroe rather than Marilyn.

Scottish Marjorie and her English twin Margery were early twentieth century favorites that date back to medieval times, when it was popular among the royals. They were at their height in the 1920s, when they were seen as more lively versions of the old standard. Marjorie was always the preferred spelling, in the Top 25 from 1920 to 1927.

Marlene Dietrich made it famous when she condensed her first two names, Maria and Magdalena. Now more often pronounced with two syllables rather than three.

Martin is one of those names like Arthur and Vincent and George that is in the process of throwing off its balding middle-aged image to start sounding possible again, used in full without the dated Marty nickname.

Mary is the English form of Maria, which ultimately was derived from the Hebrew name Maryam/Mariam. The original meaning of Maryam is uncertain, but theories include "drop of the sea" (from Hebrew roots mar "drop" and yam "sea"); "bitter" (from Hebrew marah "bitterness"); and "beloved" (from the Egyptian root mr).

Maude, also spelled Maud, is a lacy, mauve-tinted name that was wildly popular a hundred years ago, but has been rarely heard in the past fifty. Some stylish parents are starting to choose it again, especially as a middle.

Almost as popular in the 1950s among the Irish in Boston as it was with those back in Bray, Maureen was once among the most prominent Irish names for girls in the US but has fallen from favor along with most of her een-ending sisters such as Eileen and Colleen.

Megan originally evolved from Meg, which itself derived as a nickname for Margaret. Margaret ultimately comes from the Greek word margarites, meaning "pearl." Megan is no longer a common nickname for Margaret—it is most often used as a full name. Other spellings include Meghan, Meagan, Megyn, and Meaghan.

Meredith has been considered primarily a girl's name since the fifties, before which it was more commonly used for boys. Comic actor Jay Mohr recently named his son Meredith, which might help it swing back into the blue column. The traditional Welsh pronunciation puts the stress on the middle syllable, making Red a cool nickname possibility.