Thursday Morning Riddle

I’m a language or history many can claim;
I am knowledge or sense when you all have the same;
I’m a non-scientific vernacular name;
And the lack of a title, or similar shame.

Who am I?

UPDATE: Riddle solved by Anonymous. See comments for answer.

2 Responses to “Thursday Morning Riddle”

  1. Anonymous Says:

    Common

  2. Bill Says:

    COMMON is correct. Way to go, Anonymous!

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