词根词缀：calci-, calc-, calcane-, calcio-, calco-, calcar-, calx

【来源及含义】Latin: lime, calcium; heel, bone of the tarsus; to tread [derived from calx, calcis, limestone, lime, pebble; from Greek words halix and psephos meaning "small stone, pebble"]

【同源单词】a capite ad calcem, acalculia, astragalocalcanean, calcaneal, calcanean, calcaneitis

词根词缀：chalico-, chalic-

【来源及含义】Greek: gravel, pebbles, rubble

【同源单词】chalicodophilous, chalicophilous, chalicophyte, chalicosis, chalicothere

词根词缀：psepho-, pseph-

【来源及含义】Greek > Latin: pebble/pebbles, stone/stones; election; vote

【相关描述】To cast one's vote with a pebble, to count, reckon; from small stone, pebble [used in counting or voting]. Pebbles were used in ancient Greece for casting votes, and so psephos came to metaphorically mean, "vote".

【同源单词】isopsephic, psephism, psephite, psephocracy, psephocrat, psephograph

词根词缀：scrup-, scrupul-

【来源及含义】Latin: uneasiness, anxiety, doubt, especially, over a moral issue; literally, "small, sharp stone or pebble"

【同源单词】overscrupulosity, overscrupulous, overscrupulously, overscrupulousness, scruple, scruple