KEYSTONE · Day 86

Saturday, October 17, 2026 — three word bridges.

Every neighbouring pair has to make one word. SOME → DAY → LIGHT → HOUSE works because someday, daylight and lighthouse are all words. You are given the two ends; you supply the middle. More than one bridge is often legal, and any legal bridge counts.

Warm-up

WORK→???→?????→DOWN

3 letters, then 5 letters.

Show an answer

OUT · BREAK

workout · outbreak · breakdown — at least 4 different legal bridges exist for this one, so a different answer may well have counted too.

Main

OVER→????→??????→LAND

4 letters, then 6 letters.

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STEP · MOTHER

overstep · stepmother · motherland — at least 2 different legal bridges exist for this one, so a different answer may well have counted too.

Challenge

UNDER→????→????→NIGHT

4 letters, then 4 letters.

Show an answer

TAKE · OVER

undertake · takeover · overnight — at least 2 different legal bridges exist for this one, so a different answer may well have counted too.

How day 86 worked out

Day 86 ran on Saturday, October 17, 2026. Its three bridges were WORK to DOWN, OVER to LAND and UNDER to NIGHT. Between them they build nine compound words, all listed at the bottom of this page. Below is the answer to each bridge and what makes it fit.

Warm-up: WORK to DOWN

The answer is OUT then BREAK, which gives workout, outbreak and breakdown. The first gap is 3 letters, the second is 5.

This bridge is not unique. KEYSTONE accepts 4 different pairs here and every one of them scores: DAY · BREAK, OUT · LET and OUT · RUN work just as well as the pair above. Ends like these sit in the crowded part of the compound-word network, which is why several routes cross them.

Main: OVER to LAND

The answer is STEP then MOTHER, which gives overstep, stepmother and motherland. The first gap is 4 letters, the second is 6.

This bridge is not unique. KEYSTONE accepts 2 different pairs here and every one of them scores: STEP · FATHER works just as well as the pair above. Ends like these sit in the crowded part of the compound-word network, which is why several routes cross them.

Challenge: UNDER to NIGHT

The answer is TAKE then OVER, which gives undertake, takeover and overnight. The first gap is 4 letters, the second is 4.

This bridge is not unique. KEYSTONE accepts 2 different pairs here and every one of them scores: PASS · OVER works just as well as the pair above. Ends like these sit in the crowded part of the compound-word network, which is why several routes cross them.

Every compound word in day 86

OUT, BREAK, STEP, MOTHER, TAKE and OVER have a page listing every compound built on them and the other chains you can run through them.

Every one of those nine compounds turns on a hinge word doing double duty. If you want to see the whole set KEYSTONE draws from, the reference list of 141 compound word hinges gives the words that attach in front of and behind each one.

Play day 86 yourself