One of the mysteries of the English language finally explained.
Definition of misguess in US English:
misguess
noun
A wrong guess; (Bridge) an incorrect guess at the situation regarding a (stated) suit.
verb
1no object To guess wrongly.
2To guess wrongly at (a situation, outcome, etc.).
3Bridge. To guess wrongly at (the situation regarding a (stated) suit).
Origin
1940s; earliest use found in The Frederick News. From misguess<br>mid 16th century; earliest use found in Thomas More (1478–1535), lord chancellor, humanist, and martyr. From mis- + guess.