Even after 30 years still finding stuff I didn't know back in the day.
Participants in a melee can opt to attack, parry, fall back, or flee.
Attack can be by weapon, both hands, or grappling.
Parrying disallows any return attack that round, but the strength "to hit" bonus is then subtracted from the opponent's "to hit" dice roll(s), so the character is less likely to be hit.
Falling Back is a retrograde move facing the opponent(s) and can be used in conjunction with a parry, and opponent creatures are able to follow if
not otherwise engaged.
Fleeing means as rapid a withdrawal from combat as possible; while it exposes the character to rear attack at the time, subsequent attacks can only be made if the opponent is able to follow the fleeing character at equal or greater speed.
Pictures from DF Session 80
1 hour ago