The only free and comprehensive online etymological dictionary of the Spanish language
sentir (Verb) "to feel"
12th cent. Old Spanish sentir. From Latin sentire 'id.' From Proto-Italic *senti-je/o- 'id.' From Proto-Indo-European *sn̥t-i̯e/o- 'id.' From a root *sent- "to feel," "to think."
Indo-European
Romance
Asturian sentir, Portuguese sentir, Galician sentir, Catalan sentir, French sentir, Italian sentire, Aromanian simtu, Romanian simți, Sardiniansentire
Balto-Slavic
Church Slavic sęštъ "wise," Lithuanian sintė́ti "to think"