Question

sort the words according to the meanings of their shared roots.
perennial annuity superannuated binaural
monomania auriscope centennial monastery
one; alone year ear

Explanation:

• For the root "one; alone":
• "monomania" has "mono - " meaning one, referring to an excessive preoccupation with one thing.
• "monastery" has "mono - " (from monastic, related to being alone in a religious context, as monks live in solitude or small groups in a monastery).
• For the root "year":
• "perennial" has "ann - " (related to year, meaning lasting for many years).
• "annuity" has "ann - " (related to year, a financial product with payments over years).
• "superannuated" has "ann - " (related to year, meaning outdated as if from years of service).
• "centennial" has "cent - " (hundred) and "ann - " (year, referring to 100 years).
• For the root "ear":
• "binaural" has "aural - " (related to ear, "bi - " means two, so related to two ears).
• "auriscope" has "auri - " (related to ear, a device to examine the ear).

Answer:

• one; alone: monomania, monastery
• year: perennial, annuity, superannuated, centennial
• ear: binaural, auriscope