Jennifer is a feminine given name deriving from the Cornish form of the Welsh name Guinevere (Gwenhwyfar in Welsh). The name's meaning is often interpreted as 'the fair one' or 'white wave,' stemming from Proto-Celtic elements meaning 'white' (*windo-) and 'phantom' or 'supernatural being' (*sēbro), cognate with Old Irish síabar. Linguistically, it is also related to the Old Irish name Findabair. Etymology The earliest recorded use of Jennifer in English dates to the 18th century in Cornwall, where it remained a regional name for over a century. Unlike the unrelated Old English words genefer or jinifer, which refer to the juniper plant, Jennifer's origin is firmly rooted in the Celtic mythological and Arthurian tradition via Guinevere, the legendary queen of King Arthur. Rise in Popularity While known in Cornwall, Jennifer saw little use elsewhere until the early 20th century. Its breakthrough came with George Bernard Shaw's 1906 play The Doctor's Dilemma, which featured the name, bringing it to a wider audience. However, it was not until the late 1930s that Jennifer began a steady climb in the United States. Gaining momentum through the mid-20th century, it became the single most popular name for American girls from 1970 until 1984, though its prevalence was markedly lower in the United Kingdom. Notable Bearers Several prominent public figures have kept the name in the spotlight. Notable carriers include the American actress Jennifer Aniston (born 1969), best known for her role on Friends; actress Jennifer Garner (born 1972); actor and singer Jennifer Lopez (born 1969); and actress Jennifer Lawrence (born 1990), who won an Academy Award for Silver Linings Playbook. Variants and Diminutives Alternate spellings include Jenifer and Yénifer/Yénnifer (used in Latin American Spanish). Common English diminutives are Jen, Jenn, Jenny, Jenna, Jena, Jenelle, and Jeni. Related names in other languages include the original Welsh Gwenhwyfar, Arthurian Guenevere, and Cornish Jenifer. Meaning: 'The fair one' or 'white wave' Origin: Cornish form of Guinevere (Welsh family) Gender: Feminine Usage: Dutch, English, German, Spanish, Swedish