Doublets
Double or No Double?
It's All Greek to Me
All's Well that Ends Well
100

fragile

frail

Fragile is Latin.

Frail is French.

100

egg

Double.

100

graph

<ph> ~ /f/

100

home

The replaceable <e> marks the vowel sound.

200

catch

capture

Catch is French.

Capture is Latin.

200

misspoke

No double.

200

chrome

<ch> ~ /k/

200

ski

No complete English word ends in <i>, so this must be borrowed.

300

reason

ratio

Reason is French.

Ratio is Latin.

300

robber

Double.

300

gym

<y> in the middle

300

flu

No complete English word ends in <u> so this must be a clip (of influenza).

400

potion

poison

Potion is Latin.

Poison is French.

400

attract

No double.

400

microscope

Connecting vowel <o>.

400

is, as, his, us, has

Content words cannot end with a single <s>, so these must be function words.

500

tradition

treason

Tradition is Latin.

Treason is French.

500

questionnaire

Double.

500

synchronize

<y> in the middle AND <ch>~/k/

500

tomato

English content words don't end in <o>, so this must be a loan word.