1. produce or deposit (eggs).   sublimate   saturate   postulate   spawn   Hint Half-n-half Clue   2. split into two opposite groups.   implement   vent   polarize   splice   Half-n-half Clue   3. lay down as basis or truth.   postulate   ossify   inhibit   quarantine   Half-n-half Clue   4. hasten or throw headlong down.   invalidate   precipitate   weather   sublimate   Half-n-half Clue   5. place one thing over another.   perturb   propagate   superimpose   manipulate   Half-n-half Clue   6. introduce or originate.   steep   initiate   invert   integrate   Half-n-half Clue   7. convert into vapor.   smolder   truncate   ruminate   vaporize   Half-n-half Clue