Proto-Germanic
*luft-
This is the oldest form Wiktionary records for these English words. No English word family is recorded for Proto-Germanic *luft- beyond them yet.
Proto-Germanic *luft- on Wiktionary
From Wiktionary, by Wiktionary contributors, CC BY-SA 4.0, via kaikki.org (dump of Oct 3 2026); adapted. License.
Etymograph / Proto-Germanic *luft-