þihtaz
þihtaz is a reconstructed Proto-Germanic word believed to mean "thick" or "dense." Its exact meaning is inferred from its cognates in descendant Germanic languages. In Old English, the related word þicce can mean "thick," "dense," or "frequent." In Old Norse, the word þéttr has similar meanings, referring to something compact or dense. In Gothic, the word þalath could also relate to thickness.
The Proto-Germanic root is thought to be *þiht-, and the reconstruction of *þihtaz is based on comparative
The word likely influenced the development of various terms related to density and thickness across different