The crossword solutions for the term PREFIX FOR HAZARD are BIO and HAP. BIO is a prefix derived from the Greek word 'bios' meaning life, and is used to refer to living organisms or processes. HAP is a prefix derived from the Latin word 'hapax' meaning chance or luck, and is used to refer to something that is subject to chance or luck. Both BIO and HAP can be used as prefixes for words related to hazard, such as biosecurity and haphazard.