-TʼIʼ
Navajo
    
    Etymology 1
    
From Proto-Athabaskan *t’əkʸ’ (“to be stretched, taut”).
Cognate root found in Ahtna nic’et’ (“it is stretched”) (with metathesis), Gwich'in niint’aii (“it is extended”), Chipewyan nįtʼiy (“it is tight”).
Describes the extension into a line of a slender flexible object as a rope, a wire, and by extension, a fence, a road, rails or a line of people.
Root
    
-TʼIʼ
- SFO extends
| Theme | Category | Bases | Transitive bases (O + ł) | ||||
|---|---|---|---|---|---|---|---|
| ∅ | extensional | S extends 
 
 
 | S extends O 
 
 | ||||
| ∅ | S extends  
 | 
Stem set
    
| Aspect | IMP | PERF | FUT | ITER | OPT | 
|---|---|---|---|---|---|
| MOM | -tʼééh | -tʼiʼ | -tʼih | -tʼih | -tʼééh | 
| CONT | -tʼiʼ | -tʼiʼ | -tʼih | -tʼih | -tʼiʼ | 
| REV | -tʼih | -tʼiʼ | -tʼih | -tʼih | -tʼih | 
| NEUTER | - | -tʼiʼ | - | - | - | 
See also Appendix: Roots and stems derivation.
Synonyms
    
Derived terms
    
Navajo terms belonging to the root -TʼIʼ (SFO extends)
Etymology 2
    
Uncertain. Cognate not found in other Athabaskan languages.
There is some variation in the actual stems of the imperfective and perfective modes, both -tʼiʼ and -tʼi being reported by various sources. Perhaps an influence of -TʼIʼabove.
Root
    
-TʼIʼ
| Theme | Category | Bases | Transitive bases (O + ł) | ||||
|---|---|---|---|---|---|---|---|
| ʼa + ni + ∅ | motion | S staggers 
 
 | 
| Theme | Category | Bases | Transitive bases (O + ł) | ||||
|---|---|---|---|---|---|---|---|
| dzi + d | motion | S goes swiftly 
 | 
3. to beat hard, to pound (the heart of a frightened person)
| Theme | Category | Bases | Transitive bases (O + ł) | ||||
|---|---|---|---|---|---|---|---|
| dzi + d | successive | S beats hard 
 | 
Stem set
    
| Aspect | IMP | PERF | FUT | ITER | OPT | 
|---|---|---|---|---|---|
| MOM | -tʼééh | -tʼiʼ | -tʼih | -tʼih | -tʼééh | 
| CONT | -tʼi | -tʼi | -tʼih | -tʼih | -tʼi | 
| REP | -tʼih | - | - | - | - | 
See also Appendix: Roots and stems derivation.
Synonyms
    
Derived terms
    
Navajo terms belonging to the root -TʼIʼ (stagger)