1
Stage 1 of 4
logike
Greek · ancient
"the study of reasoning"
from "logos" (reason, word), the study of valid reasoning
2
Stage 2 of 4
logica
Latin · ancient
"the science of reasoning"
adopted through Greek philosophical influence
3
Stage 3 of 4
logique
Old French · medieval
"the science of reasoning"
carried the discipline into French
4
Stage 4 of 4
logic
English · medieval
"the science of valid reasoning"
settled as the English word for reasoned argument
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