1) Be fruitful and multiply 2) Breed 3) Create 4) Do it, Biblical-style 5) Form a group, you might say 6) Make 7) Multiply 8) Multiply in a way 9) Reproduce Found on https://www.crosswordclues.com/clue/procreate
To beget; to produce by the sexual act; said usually of the male parent. ... Origin: L. Pro-creo, pp. -creatus, to beget ... (05 Mar 2000) ... Found on http://www.encyclo.co.uk/local/20973
Pro'cre·ate transitive verb [ imperfect & past participle Procreated ; present participle & verbal noun Procreating .] [ Latin procreatus , past participle of procreare ; pro forward, forth + create to creat... Found on http://www.encyclo.co.uk/webster/P/167
procreate 1. To produce offspring (children) by reproduction. 2. To beget and to conceive (offspring). 3. To produce or to create; to originate. 4. To create or to produce something. Found on http://www.wordinfo.info/words/index/info/view_unit/1754/