Question

sort the words according to the meanings of their shared roots. fractious infraction conjoin communicate diffraction supernatural insuperable convene break above; beyond together

Explanation:

For "break" category:

• "fractious" has root related to "break" (from "fract-" meaning break, as in fractious meaning irritable, like prone to breaking into conflict).
• "infraction" has "fract-" (break) + "in-" (into), meaning a violation (breaking a rule).
• "diffraction" has "fract-" (break) + "dif-" (apart), related to breaking or spreading of waves.

For "above; beyond" category:

• "supernatural" has "super-" (above) + "natural", meaning beyond natural.
• "insuperable" has "super-" (above) + "in-" (not) + "able", meaning not able to be overcome (beyond ability).

For "together" category:

• "conjoin" has "con-" (together) + "join", meaning to join together.
• "communicate" has "com-" (together) + "municate" (share), meaning to share together.
• "convene" has "con-" (together) + "vene" (come), meaning to come together.

Answer:

• break: fractious, infraction, diffraction
• above; beyond: supernatural, insuperable
• together: conjoin, communicate, convene