I think I may be stupid, but can someone explain to me how "Phiitehwesfv (“Seagull”)" relates to snowflakes?

In the mountainous region inhabited by the Veena, villages are frequently enveloped by heavy snows. A male Veena’s surname marks him an integral, albeit small, part of this landscape, combining references to snow crystals with the word “wesfv”─“guardian.” However, as the snowflake-based themes employed and the number of surnames in use differ from village to village, the examples below should be considered only a small sampling of the possibilities.