请帮我设计yesterday这个单词的异体形式

请帮我设计yesterday这个单词的异体形式，就是说把这个单词变下形，看起来还是yesterday，但是是有点火星文那种，还不明白的，就是说改装一下yesterday这个单词

fantastic [fæn'tæstik]

adj. 极好的,难以相信的,奇异的,幻想的
例句与用法:
He is given to telling fantastic stories about his travels in Asia.
他喜欢告诉我们他在亚洲旅游的新奇经历。
My daughter likes to describe her fantastic dreams to me.
我女儿喜欢给我讲她那些奇怪的梦。
We watched a fantastic play yesterday evening.
昨天晚上我们看了一场非常精彩的演出。

词形变化:
副词:fantastically 名词:fantasticality 异体字:fantastical
英英解释:
形容词 fantastic:
ludicrously odd
同义词：antic, fantastical, grotesque
extraordinarily good; used especially as intensifiers
同义词：grand, howling, marvelous, marvellous, rattling, terrific, tremendous, wonderful, wondrous
extravagantly fanciful and unrealistic; foolish
同义词：wild
existing in fancy only- Nathaniel Hawthorne
同义词：fantastical
of the highest quality
同义词：ace, A-one, crack, first-rate, super, tiptop, topnotch, tops
extravagantly fanciful in design, construction, appearance
exceedingly or unbelievably great
同义词：phenomenal