Ivy is the English word for the evergreen climbing plant, used as a girl's name since the late nineteenth century when botanical names came briefly into fashion (Rose, Lily, Daisy, Violet, Ivy). In the language of flowers — popular in the Victorian era — ivy symbolised faithfulness, fidelity, and friendship, because the plant clings closely to whatever it grows on.
Ivy fell out of fashion through most of the twentieth century but has returned with the broader revival of nature names. Beyoncé and Jay-Z named their daughter Blue Ivy Carter in 2012; the name has been climbing rapidly ever since.
Two short letters, one syllable, evergreen meaning.
Ivy reduces to nine in Pythagorean numerology — the number of completion, idealism, and quiet endurance.