[with.al] adv [ME, fr. with + all, al all] (13c) 1: together with this: besides "a supporter of all constructive work and ~ an excellent businessman --A. W. Long"
2. archaic: therewith 1
3: on the other hand: nevertheless
[2]withal prep (14c) archaic: with--used postpositively with a relative or interrogative pronoun as object