1034. First, we look at how writers should use trademarked terms like "Kleenex" and "Google," including when to capitalize them and how to avoid legal pitfalls. Then, we look at the way the word "thank" evolved alongside changing social conventions — who got thanked and why, and how the word itself evolved.

The trademark segment was written by Natalie Schilling, a professor emerita of linguistics at Georgetown University in Washington, DC, who runs a forensic linguistics consulting firm. You can find her on LinkedIn.

The "thank you" segment was written by Valerie Fridland, a professor of linguistics at the University of Nevada in Reno and the author of "Like, Literally, Dude: Arguing for the Good in Bad English." You can find her at valeriefridland.com.

🔗 Share your familect recording in a WhatsApp chat.

🔗 Watch my LinkedIn Learning writing courses.

🔗 Subscribe to the newsletter.

🔗 Take our advertising survey.

🔗 Get the edited transcript.

🔗 Get Grammar Girl books.

🔗 Join Grammarpalooza. Get ad-free and bonus episodes at Apple Podcasts or Subtext. Learn more about the difference.

| HOST: Mignon Fogarty

| VOICEMAIL: 833-214-GIRL (833-214-4475).

| Grammar Girl is part of the Quick and Dirty Tips podcast network.

Audio Engineer: Dan Feierabend
Director of Podcast: Brannan Goetschius
Advertising Operations Specialist: Morgan Christianson
Marketing and Publicity Assistant: Davina Tomlin
Digital Operations Specialist: Holly Hutchings
Marketing and Video: Nat Hoopes

| Theme music by Catherine Rannus.

| Grammar Girl Social Media Links: YouTube. TikTok. Facebook.Threads. Instagram. LinkedIn. Mastodon.

How to write about trademarks. Why we say 'thank you.'

Grammar Girl: For Writers and Language Lovers.

How to write about trademarks. Why we say 'thank you.'