接頭辞 (せっとうじ, settouji) Japanese meaning: prefix | KotomoraThe 'o' in 'ocha' is a prefix.
Japanese prefixes include 'o', 'go', 'fu', 'hi', and others.
Etymology
Compound of 接頭 (settō, 'prefixal') + 辞 (ji, 'word' or 'morpheme'), modeled after Western linguistic terminology.
