mis·reck·on 
(mĭs-rĕkən)
(mĭs-rĕkən)v. mis·reck·oned, mis·reck·on·ing, mis·reck·ons
v.tr.
To reckon incorrectly; miscalculate.
v.intr.
To engage in incorrect reckoning or miscalculation.
mis·reckon·ing n.
- straight-ahead
- straight and narrow
- straight angle
- straight-arm
- straight arrow
- straight-arrow
- straightaway
- straight chain
- straightedge
- straightedged
- straighten
- straightener
- straighten out
- straight face
- straight-faced
- circumscriptive
- circumsolar
- circumspect
- circumspection
- circumspectly
- circumstance
- circumstantial
- circumstantial evidence
- circumstantiality
- circumstantially