ym

See also: Ym, ym., and ym-

Translingual

Symbol

ym

(metrology) Symbol for yoctometre (yoctometer), an SI unit of length equal to 10⁻²⁴ metres (meters).

Egyptian

Etymology

Borrowed from Northwest Semitic. Compare Hebrew יָם (yām), Arabic يَمّ (yamm) and cognates listed at that entry.

Pronunciation

(modern Egyptological) IPA^(key): /iːm/
- Conventional anglicization: ym

Noun

m

sea, lake [since the 18th Dynasty]

Usage notes

Most commonly used in reference to the Mediterranean Sea, but also applied to Lake Moeris and other smaller bodies of water.

The glyph

does double duty in some writings of this word, serving simultaneously as a determinative and as a phonetic mw.

Inflection

Declension of ym (masculine)
singular	ym
dual	ymwj
plural	ymw

Alternative forms

Alternative hieroglyphic writings of ym

ymw

ywm

ym

ynm

[18th Dynasty]

[19th Dynasty]

Alternative hieroglyphic writings of ym

ym

ywm

[20th Dynasty]

[20th to 21st Dynasty]

[Late Period]

Descendants

Demotic Egyptian: ym
- Akhmimic Coptic: ⲉⲓⲁⲙ (eiam), ⲓⲁⲙ (iam)
- Bohairic Coptic: ⲓⲟⲙ (iom)
  - →⇒ Arabic: الفَيُّوم (al-fayyūm)
    - → English: Fayum, Faiyum, Fayyum
- Fayyumic Coptic: ⲓⲁⲙ (iam)
- Sahidic Coptic: ⲉⲓⲟⲙ (eiom), ⲓⲟⲙ (iom)

References

“ym (lemma ID 24730)”, in Thesaurus Linguae Aegyptiae‎^[1], Corpus issue 20, Web app version 2.5.0, ed. by Tonio Sebastian Richter & Daniel A. Werning […] and Hans-Werner Fischer-Elfert & Peter Dils […], 2004–23 April 2026
Erman, Adolf; Grapow, Hermann (1926), Wörterbuch der ägyptischen Sprache‎^[2], volume 1, Berlin: Akademie-Verlag, →ISBN, page 78.11
Faulkner, Raymond Oliver (1962), A Concise Dictionary of Middle Egyptian, Oxford: Griffith Institute, →ISBN, page 18
Hoch, James E. (1994), Semitic Words in Egyptian Texts of the New Kingdom and Third Intermediate Period, Princeton: Princeton University Press, →ISBN, pages 52–53

Icelandic

Verb

ym (weak)

first-person singular present indicative of ymja
second-person singular imperative of ymja

Middle English

Pronoun

ym

alternative form of him (“him”)

Middle Welsh

Pronunciation

IPA^(key): /ɨm/

Verb

ym

first-person plural present indicative of bot

Mutation

Mutated forms of ym
radical	soft	nasal	h-prothesis
ym	unchanged	unchanged	hym

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

Welsh

Preposition

ym

alternative form of yn (“in”) used before m
ym Mangor ― in Bangor

ym Mhontypridd ― in Pontypridd