An English pet form of Theresa, a name of uncertain meaning, possibly from Greek words meaning 'summer' or 'to harvest', or from the name of the Greek island of Therasia.
Vibe
playfulwarm
How it ages.
A sweet, old-fashioned pet name with a cozy, nostalgic feel, rare enough today to feel fresh.
The cultural moment.
Rare today and far past its peak: ranked #311 in the United States in 1917 and #11835 in 2025.