He completed his work ת
As the last letter of the alphabet, the tav ת represents the finished work of God. His revelation ר has finished its work with a spontaneous return to him. We love him because he first loved us. 
The name of the tav means 'mark'. The mark of God is his finished work in us. 
The word for fraud tk תך and the word for flawless tam תם are an interesting contrast. The first is the finished work ת of the Son of God in death ך. It is fraudulent to consider Christ as dead. This is the same teaching as Sibboleth. The second is the finished work ת by the Son obtaining his bride in the flesh, fulfilling the promise of the Father ם.
As a suffix, the tav ת makes the preceding a subject. It amplifies the meaning of a single letter and makes larger collections a subject.
The bet ב means a revelation to man. Then name bet בת means daughter. Since the female represents the blind, or those who do not understand, the tav changes the focus of the metaphor to the one receiving the revelation; the one who needs to see and understand, the daughter.
The winepress gath גת is the object which produces the tribulation of the fruit of the vine. The tav focuses the attention of the gimel ג, meaning to pursue, on the object by which Christ pursued man, his tribulation, even to death.
The word muth מתmeaning 'died', has the mem as a prefix meaning from, and the tav at the end, meaning the end. We get a hint that death is from the end.
The word eth עת meaning 'era' amplifies the flesh, or suggests the end of flesh. This in in contrast to eth את which suggests eternity by the representation of the first letter and the last; the beginning and the end. This supports other suggestions that time is an illusion of the flesh in order to measure decay caused by sin. The time of time is an era. The time of flesh is an era.
There is a non-Biblical, but contemporary saying which includes a supposed saying of Jesus. Whether Jesus said it or not is not important. It illustrates an understanding of the same method of building words from the metaphor of the letters. Part of it is: "And when he finds, he will be dismayed." The word for 'dismayed' is chath חת. The chet ח represents understanding. When one understands, he has found what he didn't understand. The tav focuses on the result of understanding, which is dismay. This does not speak of normal understanding, but of understanding the thing which was not understood and which separated him from God. When men understand that God alone is God, it causes a dismay or dread, realizing the deep trouble they have caused for themselves as they stand before the Almighty.
Next: The Son of God died ך