also candle-stick, "utensil for holding a candle," Middle English candel-stikke, from Old English candelsticca; see candle + stick (n.). From 1915 in reference to a type of upright telephone that was common from 1890s to 1940s.
"cylindrical body of tallow, wax, etc., formed on a wick and used as a source of artificial light," Old English candel "lamp, lantern, candle," an early ecclesiastical borrowing from Latin candela "a light, torch, candle made of tallow or wax," from candere "to shine" (from PIE root *kand- "to shine").
The Latin word is also the source of French chandelle, Spanish candela, Irish coinneal, Welsh canwyll, Russian kandilo, Arabic qandil, etc. Candles were unknown in ancient Greece (where oil lamps sufficed), but common from early times among Romans and Etruscans. Candles on birthday cakes seem to have been originally a German custom.
To hold a candle to originally meant "to help in a subordinate capacity," from the notion of an assistant or apprentice holding a candle for light while the master works (compare Old English taporberend "acolyte"). To burn the candle at both ends "consume or waste prodigiously" is recorded from 1730.
Old English sticca "rod, twig, peg; spoon," from Proto-Germanic *stikkon- "pierce, prick" (source also of Old Norse stik, Middle Dutch stecke, stec, Old High German stehho, German Stecken "stick, staff"), from PIE root *steig- "to stick; pointed" (see stick (v.)).
Meaning "staff used in a game" is from 1670s (originally billiards); meaning "manual gearshift lever" is attested by 1914. Alliterative connection of sticks and stones is recorded from mid-15c.; originally "every part of a building." Stick-bug is from 1870, American English; stick-figure is from 1949.
<a href="https://www.etymonline.com/word/candlestick">Etymology of candlestick by etymonline</a>
Harper, D. (n.d.). Etymology of candlestick. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/candlestick