lingu-
combining form 
or lingua- or lingui- or linguo-
Etymology: Latin lingu-, from lingua 
1. : language 
< linguipotence >
< linguist >
2. : tongue 
< linguopapillitis >
3.
a. : produced by the tongue and  — in terms referring to speech sounds
< linguodental >
< linguanasal >
< linguonasal >
< linguopalatal >
b. : lingual and 
< linguomaxillary >
4. : lingually 
< linguodistal >
or lingua- or lingui- or linguo-
1.
< linguipotence >
< linguist >
2.
< linguopapillitis >
3.
a.
< linguodental >
< linguanasal >
< linguonasal >
< linguopalatal >
b.
< linguomaxillary >
4.
< linguodistal >