Kendra seems to be a feminine form of Kenneth, itself an anglicized form of two Scottish Gaelic names:
the first is Coinneach meaning “handsome, fair, beautiful” via Gaelic caoin (handsome);
the second is Cináed, a name of uncertain etymology though the second element seems to be derived from Old Irish áed “fire” < Proto-Celtic *aidus which ultimately derives from a PIE root word. The first element may be derived from Irish cion (love, affection; regard, esteem), so the name would essentially mean “beloved of Aodh”, Aodh being the god of the underworld;
Cináed may also possibly be related to Ciniod, a Pictish name with a very different origin. Though the first element is uncertain, the second element seems to be related to Proto-Brythonic *jʉð (lord, judge).
Kendra could also be a feminine form of Kendrick which in this case comes from an English, Welsh, and Scottish surname with a few possible meanings such as (respectively) “royal power”, “chief hero” or “great champion”, or “son of Henry“.
It’s also likely that Kendra could have been inspired as a smoosh of Ken/Kenneth and Sandra, a shortened form of Alexandra or Alessandra meaning “defending men” or “defender of men”.
Origin: Proto-Indo-European; uncertain
Meaning: “handsome, fair, beautiful”; possibly “beloved of Aodh”; may also be related to a Pictish name, the second element possibly meaning “lord”; “royal power”, “chief hero” or “great champion”, or “son of Henry”
Alaric is an Ancient Germanic male name meaning “ruler of all” composed of Proto-Germanic *allaz (all) and *rīks (king, ruler). It was the name of Alaric I, the first king of the Visigoths famous for the Sack of Rome in 410 AD, one of the first signs that would lead to the eventual fall of the Roman Empire.
Alaric was also the name of a legendary king of the Swedes who along with his brother Eric co-ruled.
Walburga is a German female name, most famously associated with an 8th century English saint who did missionary work in Germany. Walpurgis night is a celebration that takes place on April 30th, celebrated in Northern Europe and Scandinavia, often associated with witches and bonfires. The festival long preceded the arrival of Christianity and Saint Walburga but became associated with Saint Walburga in an effort to distance it from its pagan roots.
The name is composed of Proto-Germanic elements *waldaną (to rule) and burg (stronghold, fortress; castle, city) essentially meaning “ruler of the fortress”.
Harry is the medieval English form of Henry, which comes from Germanic Heimrich meaning “home ruler” , made up of Germanic elements heim (home) and ric (power, ruler), both deriving from a PIE origin. Harry could also be used as a nickname for Harold meaning “army ruler” or “army power”.
Harry is also an English surname originating from the given name.
Meaning: “home ruler”; could also be used as a nickname for Harold “army ruler” or “army power”
Frederick is the English form of Friedrich, a Germanic male name meaning “peaceful ruler”, made up of Germanic elements frid (peace) and ric (ruler); frid comes from Proto-Germanic *friþuz (peace, tranquility) via *frijaz (free) which ultimately derives from PIE root *preyH– (to love); and ric via Proto-Germanic *rīks (king, ruler) which ultimately derives from PIE root word *h₃reǵ- (to straighten, to right oneself).
Frederick is also an English surname originating from the given name.