Where does “peninsula” come from?

peninsula (Bikol Central) comes from Spanish península, from Latin paenīnsula, from Latin paene, from Proto-Indo-European peh₁- — to hate, hurt.

Ancestry of “peninsula”, step by step

StepLanguageWordMeaning
1Spanishpenínsulapeninsula
2Latinpaenīnsulapeninsula
3Latinpaenealmost, nearly; scarcely, hardly, barely
4Proto-Indo-Europeanpeh₁-to hate, hurt
Every word from Proto-Indo-European peh₁- →Every word from Latin paene →Every word from Latin paenīnsula →
peninsula — Etymology, Origin & Word History | Etymology Explorer