balk - noun

the area on a billiard table behind the balkline

something immaterial that interferes with or delays action or progress

one of several parallel sloping beams that support a roof

an illegal pitching motion while runners are on base

balk - verb

• refuse to comply

balk - thesaurus

baulk   check   deterrent   handicap   hinderance   hindrance   impediment   jib   rafter   resist