Graphemes: u
Classes: short back close vowel
Implicit classes: vocalic V
Features -long +back +high -low +syllabic +voice
Related rules
Origin
pnwgmc-a-before-m: a > u / _mpwgmc-stressed-u: u > opwgmc-final-j-w: j > i / C_#, w > u / C_#, ij > ī / _#pwgmc-word-final-high-nasals: {į|ų} > {i|u} / _#pwgmc-word-final-i-u: {i|u} > ∅ / _#pwgmc-unstressed-diphthongs: au > ō, ōu > ōpwgmc-jj-ww: uww > ūw / _!j, ww > uw / _!j, j > i / _jDevelopment: Old English
post-pwgmc-monosyllabic-z: aiz > ā / C_, iz > ē / C_, uz > ū / C_oe-awwj: ww > u / a_joe-diphthong-tensing: ai > ā, au > ēa, eu > ēo, iu > īooe-i-umlaut: {u|ū|o|ō|æ|ā} > {y|ȳ|e|ē|e|ǣ}oe-short-vowel-syncope: {æ|e|o} > ∅, i > ∅, {u|y} > ∅oe-apocope: {i|u} > ∅ / _#, {i|u} > ∅ / _#oe-epenthesis: ∅ > e / C_r#, ∅ > o / C_r#, ∅ > e / C_l#, ∅ > o / C_l#, ∅ > e / C_n#, ∅ > u / C_m#oe-unstressed-vowel-u: u > o