PREHISTORICALprehistorical · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:PREHISTORICALTier 1Ordinal153Pythagorean72Classical146Reverse198Reverse Reduction81Standard1101Final Large1101Ordinal156Reduced39Atbash295Isopsephy934Ordinal169Abjad945