| craft(noun, vessel, water, vehicle, boat) |
| foundational(adjective, important, significant, original, basic) |
| minimum(noun, adjective, amount, speck, least) |
| prat |
| quintessence(noun, quality, feeling, cause, start) |
| radical(adjective, important, significant, original, essential) |
| soul(noun, quality, cause, start, character) |
| source(noun, cause, start, base, beginning) |
| stuff(noun, quality, feeling, cause, start) |
| substratum(noun, support, cause, start, substance) |
| substructure(noun, support, low, substance, rest) |
| support(noun, verb, hold, maintain, substance) |
| undermost(adjective, fundamental, over, lowest) |
| undersurface(noun, over) |
| valley(noun, dip, hollow, gorge, concavity) |
| origin(noun, cause, base, source, core) |
| back(noun, adjective, turn, back, contrary) |
| backbone(noun, nature, quality, character, spirit) |
| bedrock(noun, support, cause, start, substance) |
| buns |