Proto-Indo-European *-ḱos

→ English barnacle (mention)

→ Welsh -og (mention)

→ Scottish Gaelic -ach (mention)

→ Gothic -𐌲𐍃 (mention)

→ Ancient Greek -κός (mention)

→ Latin -cus (mention)

→ Latvian -īgs (mention)

→ Middle Irish -ach (mention)

→ Norwegian Bokmål abiotisk (mention)

→ Norwegian Bokmål a-klinikk (mention)

→ Norwegian Bokmål A-klinikk (mention)

→ Russian бокаж (mention)

→ Old Irish -ach (mention)