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LessonsCatch the Flaw

Lesson 27 · Language · Latin roots and word parts

Step 1 of 4

Find the wrong step

A research submarine travelling beneath a boat on the ocean surface
Your lessonLatin roots and word partsCore

The Submarine Word Code

The crew studies the word submarine before choosing a route.

Word part
sub-
Related words
submerge, subway, subsoil

Your question

What idea does sub- add to submarine?

Lumi’s answer: “It means above, because sub- must be a short form of super-.

1

Step 1 of 4

Find the wrong step

Find where the reasoning first breaks

Start with Step 1 and move downward. Choose the first line that stops making sense.

Later lines may be wrong too. Pick the first mistake.

Lumi’s work

These lines form one solution. Read them from top to bottom.

  1. 1

    The word submarine begins with sub-.

  2. 2

    Similar-looking prefixes must have the same meaning.

  3. 3

    Super- can mean above, so sub- must also mean above.

  4. 4

    A submarine travels above the sea.