■ verb
1》 ( ~ someone with ) make someone aware of or familiar with.
2》 ( be ~ed with ) know personally.
↘( be ~ed ) (of two or more people) know each other slightly.
Origin
ME: from OFr. acointier 'make known', from late L. accognitare , from L. accognoscere , from ad- 'to' + cognoscere 'come to know'.