Where does “Tamsin” come from?

Tamsin is an English diminutive of Thomasina, ultimately derived from Aramaic תאמא and תאומא, passing through Ancient Greek Θωμᾶς, Latin Thomas, and English Thomas.

Ancestry of “Tamsin”, step by step

StepLanguageWordMeaning
1EnglishThomasina—
2English-inaUsed to form feminine nouns
3Spanish-ina-ine; -in; A diminutive suffix for feminine nouns...
4French-inefeminine singular of -in; female equivalent of...
5French-épast participle root verb suffix of regular -er...
6Middle French-épast participle root verb suffix of regular; -ed, -en, -n
7Old French-éused to form past participles of regular -er...
8Latin-asuffixed to the roots of verbs, forms agent...
9Proto-Italic-āForms masculine agent nouns from prefixed or compounded bases
10Proto-Indo-European-éh₂—
Every word from Proto-Indo-European -éh₂ →Every word from French -ine →Every word from Latin -a →