1.
prefix
A morpheme added to the beginning of a word to modify its meaning or create a new word. A term used in linguistics and grammar study.
接頭辞 is a linguistics term meaning "prefix" — a morpheme added to the beginning of a word. Understanding prefixes is very helpful for building vocabulary.
Forms
接 (connect) + 頭 (head/beginning) + 辞 (word element)
Common japanese prefixes
Common collocations
Related words
接尾辞 (suffix — attached to the end of a word).