Unique One-Syllable Girl Middle Names!

The list's title is pretty self explanatory, but the description must exceed fifteen words, which is why I'm bothering to write all of this.
  1. Ash
    • Origin:

      English
    • Meaning:

      "ash tree"
    • Description:

      The tree, not the charred bit of soot in the fireplace, usually used for boys, but, as a short form of Ashley, works for girls too.
  2. Bay
    • Origin:

      Latin
    • Meaning:

      "berry"
    • Description:

      One of the most usable of the pleasant, newly adopted nature/water names (like Lake and Ocean), especially in middle position.
  3. Birch
    • Origin:

      English, German, Danish, and Swedish surname and tree name
    • Meaning:

      "dweller in the birch wood"
    • Description:

      One of the rarer tree names, Birch evokes imagery of the beautiful paper-white bark tree.

      Although a unisex name, the most notable people named Birch are men, such as Indiana senator Birch Evans Bayh Jr.

      Birch trees are very symbolic in many cultures. In Russia, birch trees are emblematic of grace, beauty, and strength. In Celtic culture, birch trees represent growth, stability, and adaptability.

  4. Blue
    • Origin:

      Color name
    • Description:

      Blue suddenly came into the spotlight, as the unusual color name chosen by Beyonce and Jay-Z for their baby girl Blue Ivy. Blue is also a starbaby middle name du jour, used for both sexes in different spellings and forms, from John Travolta and Kelly Preston's Ella Bleu to Alicia Silverstone's Bear Blu. Dave 'The Edge' Evans named his daughter Blue Angel back in 1989.
  5. Blythe
    • Origin:

      English
    • Meaning:

      "happy, carefree"
    • Description:

      Blythe originated as a nickname for an upbeat person, coming from the Old English word bliðe, meaning "merry" or "cheerful." Today the homophone blithe shares the same meaning. Blythe was eventually adapted to a surname before it became a feminine given name.
  6. Chase
    • Origin:

      French
    • Meaning:

      "to hunt"
    • Description:

      Chase is starting to be seen on a handful of girls each year, and has been heard as a nickname to Chelsea.
  7. Dove
    • Origin:

      Nature name
    • Meaning:

      "dove, a bird"
    • Description:

      One of the new bird names, like Lark and Wren, this one's associated with the billing and cooing sounds of love. Soft and gentle, Dove also has the admirable association with peace.
  8. Fen
    • Origin:

      English, Dutch, Frisian
    • Meaning:

      "marshland; peace"
    • Description:

      In English, a fen is a wetland fed by surface and/or groundwater. In Dutch and Frisian, it's a traditional diminutive of names containing the element frid, meaning "peace".
  9. Gem
    • Glass
      • Jewel
        • Origin:

          Word name
        • Description:

          Just like Flora is for botanicals, Jewel is the generic gemstone name, not used much since the early twentieth century, when it was seen as a symbol of how precious a daughter could be. The French version, Bijou, feels more modern, as do Pearl and Ruby.
      • June
        • Origin:

          Latin
        • Meaning:

          "young"
        • Description:

          June, a sweetly old-fashioned month name derived from the goddess Juno, was long locked in a time capsule with June Allyson (born Ella) and June Cleaver, but is rising again especially as a middle name.
      • Kat
        • Origin:

          Diminutive for Katherine, Greek
        • Meaning:

          "pure"
        • Description:

          We're hearing Kat more and more being used by Katherines who are tired of Kathy, Kate and Katie. Katti or Kattie is another possibility.
      • Lune
        • March
          • Origin:

            English word name
          • Meaning:

            "month name"
          • Description:

            March has never been popular as a month name, possibly because of its slightly abrupt sound. But with all kinds of month (and season, day, and holiday) names, from January to December, Sunday to Easter, Winter to Midnight, coming to the fore, March is beginning to seem eminently baby-ready.
        • Moon
          • Origin:

            Word name
          • Description:

            The original oddball celebrity baby name, via Frank Zappa's daughter Moon Unit, who claims she's always liked it.
        • Nyx
          • Origin:

            Greek mythology name
          • Meaning:

            "night"
          • Description:

            In Greek mythology, Nyx was a powerful goddess and the embodiment of the night, but when spoken, its negative meaning can't be ignored.
        • Prim
          • Quinn
            • Origin:

              Irish
            • Meaning:

              "descendent of Conn"
            • Description:

              Quinn is the Anglicized version of the Irish patronymic surname Ó Cuinn, meaning "descendent of Conn." Conn has two possible derivations—the Old Irish cond, meaning "intellect," or cenn, meaning "chief." One of the most notable Quinn clans was from County Tyrone in Northern Ireland.
          • Red
            • Origin:

              Color name
            • Description:

              Fiery but slight middle name choice; much more apt to be a redhead's nickname. Instead, check out other names that mean red: Rory, Rowan, Ruby.