Middle English, from Old English hlud "noisy; making or emitting noise" (of voices, musical instruments, etc.), from Proto-Germanic *hludaz "heard" (source also of Old Frisian and Old Saxon hlud, Middle Dutch luut, Dutch luid, Old High German hlut, German laut "loud"), from PIE *klutos- (source also of Sanskrit srutah, Greek klytos "heard of, celebrated," Latin inclutus "renowned, famous," Armenian lu "known," Irish cloth "noble, brave," Welsh clod "praise, fame"), suffixed form of root *kleu- "to hear."
Of places, "noisy," from 1590s. Application to colors, garments, etc. ("flashy, showy") is by 1849. Also used colloquially of notably strong or bad smells. Paired with clear (adj.) at least since c. 1650.
fem. proper name, German, literally "battle-maid," from fem. of Old High German hild "war, battle, fight, combat," from Proto-Germanic *hildiz "battle" (source also of Old English (poetic) hild "war, battle," Old Saxon hild, Old High German hilt, Old Norse hildr), from PIE *keldh-, from root *kel- "to strike, cut" (see holt). Hild-/-hild was a common Germanic name-forming element; compare Hildebrand, Brunhild, Matilda.
Old English hild figured widely in kenning compounds: Hildbedd "deathbed;" hildegicel "blood dripping from a sword," literally "battle-icicle;" hildenædre "arrow, lance, spear," literally "war-adder;" hildesæd "weary of fighting, battle-worn," literally "battle-sad."
<a href="https://www.etymonline.com/word/Clothilde">Etymology of Clothilde by etymonline</a>
Harper, D. (n.d.). Etymology of Clothilde. Online Etymology Dictionary. Retrieved $(datetime), from https://www.etymonline.com/word/Clothilde