why spider? why not spinner?
English spider comes from Old English spīþra / spīdre (forms vary by dialect/manuscript), from a Proto-Germanic root related to spinning/thread-making. Cognates include:
- German: Spinne
- Dutch: spin
- Icelandic: spiða / related forms
- Old Norse: spinnari (“spinner”)
So the semantic origin is “spinner”.
The interesting part is the intrusive or epenthetic consonant — the d in spider. English does this fairly often historically:
- thunder ← Proto-Germanic þunraz (cf. German Donner)
- spindle ← related to spin
- sound shifts involving n+r, ð+r, or l+r clusters often developed stop consonants in English
In spider, linguists generally think the d developed between consonants as a phonetic transition sound, something like:
spi-r → spid-r → spider
Similar to how:
- Old English thunor became thunder
- empty gained a /p/ sound from earlier forms without it