twi- meaning
EN- PrefixPREtwi-
- (rare or no longer productive) two.
- twi-headed
- (rare or no longer productive) double, both.
- twilight, twi-tongued
- (rare or no longer productive) two.
Definition of twi- in English Dictionary
- Part-of-Speech Hierarchy
- Morphemes
- Prefixes
- Unproductive prefixes
- Unproductive prefixes
- Prefixes
- Morphemes
- en twi-gated
- en twi-headed
- en twi-minded
- en twi-reason
- en twi-thought
Source: Wiktionary
Grammatically, this word "twi-" is a morpheme, more specifically, a prefixe.