Ancient Greek πᾰχῠ́ς

→ Greek παχύς (inherited)

→ French pachyptile (derived)

→ Ancient Greek παχυδάκτυλος (affix)

→ Translingual Pachyptila (compound)

→ Translingual Pachyptilus (compound)

→ Translingual Pachyptilum (compound)

→ Translingual Pachyptile (compound)

→ Translingual Pachytylus (compound)

→ Translingual Riftia pachyptila (derived)