fí

See also: Appendix:Variations of "fi"

Czech

Noun

fí n (indeclinable)

1. phi (Greek letter)

Icelandic

Noun

fí n (genitive singular fís, nominative plural fí)

1. phi (Greek letter)

Declension

Declension of fí (neuter)

	singular		plural
	indefinite	definite	indefinite	definite
nominative	fí	fíið	fí	fíin
accusative	fí	fíið	fí	fíin
dative	fí, fíi	fíinu	fíum	fíunum
genitive	fís	físins	fía	fíanna

Irish

Alternative forms

• fighe (dated)

Pronunciation

• (Munster, Connacht) IPA^(key): /fʲiː/
• (Ulster) IPA^(key): /fʲiə/ (corresponding to the form fighe)

Noun

fí f (genitive singular as substantive fí, genitive as verbal noun fite)

1. verbal noun of figh (“to weave”)
2. weave (type or way of weaving)

Declension

As verbal noun:

Declension of fí (irregular, no plural)

bare forms case singular nominative fí vocative a fhí genitive fite dative fí forms with the definite article case singular nominative an fhí genitive na fite dative leis an bhfí don fhí

As substantive:

Declension of fí (fourth declension, no plural)

bare forms case singular nominative fí vocative a fhí genitive fí dative fí forms with the definite article case singular nominative an fhí genitive na fí dative leis an bhfí don fhí

Verb

fí

1. analytic present subjunctive of figh

Mutation

Mutated forms of fí

radical	lenition	eclipsis
fí	fhí	bhfí

Note: Certain mutated forms of some words can never occur in standard Modern Irish.
All possible mutated forms are displayed for convenience.

Middle Irish

Etymology

From Proto-Indo-European *wisós (“poison”). Cognate with Latin vīrus, Sanskrit विष (víṣa), Ancient Greek ἰός (iós).

Pronunciation

• IPA^(key): /ɸʲiː/

Noun

fí (poetic)

1. poison, venom
2. evil

Mutation

Mutation of fí

radical	lenition	nasalization
fí	ḟí	fí pronounced with /β(ʲ)-/

Note: Certain mutated forms of some words can never occur in Middle Irish.
All possible mutated forms are displayed for convenience.

Further reading

• Gregory Toner, Sharon Arbuthnot, Máire Ní Mhaonaigh, Marie-Luise Theuerkauf, Dagmar Wodtko, editors (2019), “fí”, in eDIL: Electronic Dictionary of the Irish Language

Slovak

Etymology

Borrowed from Ancient Greek φεῖ (pheî).

Pronunciation

• IPA^(key): /ˈfiː/

Noun

fí n

1. (Greek letters) phi

References

• “fí”, in Slovníkový portál Jazykovedného ústavu Ľ. Štúra SAV [Dictionary portal of the Ľ. Štúr Institute of Linguistics, Slovak Academy of Science] (in Slovak), https://slovnik.juls.savba.sk, 2003–2025