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pec·ca·vi | \ pe-ˈkä-(ˌ)wē 
, -(ˌ)vē; -ˈkā-ˌvī \
, -(ˌ)vē; -ˈkā-ˌvī \Definition of peccavi
: an acknowledgment of sin
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Time Traveler for peccavi
The first known use of peccavi was in 1553
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