Meanings of became heartily in English

This course of life may have lasted a fortnight; when I became heartily tired of it.

No, and Mr. Cleaver's tone became heartily enthusiastic.

We now commenced that early rising and continuous training with which we soon became heartily "fed up."

But the English chieftain, harassed by unfavourable tidings from home, and perplexed by dissensions in his camp, became heartily desirous of peace.