Thou

The second personal pronoun, in the singular number, denoting the person addressed; thyself; the pronoun which is used in addressing persons in the solemn or poetical style.

To address as thou, esp. to do so in order to treat with insolent familiarity or contempt.

To use the words thou and thee in discourse after the manner of the Friends.

the cardinal number that is the product of 10 and 100