DainMorgot
Sergeant
When you release your swing as soon as your enemies swing is about to land, resulting in deflecting their swing and going through with yours to hit them. At the moment I think a parry just deflects their attack, and then you have to attack again to actually swing rather than your attack just going through anyway
What you describe here is chambering. Riposte is when you parry an enemy's attack at the last second and you have a small window to attack faster. Bannerlord has a similar mechanic when you tap block instead of holding it.