Old English trīewe

→ English true (inherited)

→ English trig (cognate)

→ Old English getriewe (prefix)

→ Middle English trew (inherited)

→ Middle English trewe (inherited)

→ Icelandic tryggur (cognate)

→ Old Norse tryggr (cognate)

→ Old Saxon triuwi (cognate)

→ Old Irish derb (cognate)

→ Yola drue (inherited)