Question

sort the words according to the meanings of their shared roots.
pedal quadruped lexicon
pedometer nonlexical pedicure
foot word

Explanation:

• For the "foot" category: The root "ped" or "pod" relates to foot. "pedal" (relating to foot operation), "quadruped" (four - footed animal), "pedometer" (measures steps/foot movement), "pedicure" (care for feet) all have roots related to foot.
• For the "word" category: The root "lex" relates to words. "lexicon" (a dictionary/collection of words), "nonlexical" (not related to words/lexical items) have roots related to words.

Answer:

• foot: pedal, quadruped, pedometer, pedicure
• word: lexicon, nonlexical