tehdas

Unknown, but probably related to Karelian tehaš. Theories include:

• tehdä (“to do, make”) +‎ -as, but the -d- is unaccounted for (the stem of tehdä is teke-). In addition, -as generally forms adjectives, not nouns (albeit some nouns are also known). The modern sense "factory" is probably also recent and probably inspired by tehdä, even if this is not the origin ot the word.
• Sometimes considered a borrowing from Proto-Germanic *stihtiz, *stihtaz, but the semantic shift is unlikely. LÄGLOS rejects this theory.[1]
• More recently, it has been suggested that the word, alongside teho (dialectal tehto), derives from an Indo-European borrowing, probably akin to Proto-Indo-European *dʰeh₁- (whence also possibly Proto-Uralic *teke- > tehdä).

• IPA^(key): /ˈtehdɑs/, [ˈt̪e̞hdɑs̠]
• Rhymes: -ehdɑs
• Syllabification^(key): teh‧das

tehdas

1. factory, mill, plant

   kenkätehdas ― shoe factory

   paperitehdas ― paper mill

   kemiantehdas ― chemical plant

• tehtailla