root formn.

Brit.

/ˈruːt fɔːm/, U.S.

/ˈrut ˌfɔrm/,

/ˈrʊt ˌfɔrm/

Origin: Formed within English, by compounding. Etymons: root n.¹, form n.

Etymology: < root n.¹ + form n.

1. Linguistics. A word form consisting of an unmodified root (root n.¹ 16a), esp. an uninflected verb form.

ΘΚΠ

the world > existence and causation > causation > source or origin > [noun] > source or primitive or original form

germc1550

stocka1625

seediness1662

primordium1704

germen1794

root form1832

rootstock1862

1832 Congregational Mag. June 344/2 The root-form of the verb, consists, generally, of three root-consonants or radicals.

1875 W. D. Whitney Life & Growth Lang. 13 The root-form of the verb.

1908 Bull. Amer. Geogr. Soc. 40 382 The student of Bantu..will comprehend why root forms are modified at their front end.

1973 Trans. Philol. Soc. 1971 68 -sil is not a permissible Indo-European root form.

2002 W. B. McGregor Verb Classif. Austral. Langs. viii. 340 Increase in the number of inflection-taking verbs that have corresponding ‘root’ forms..with the capability of independent occurrence.

2. Zoology. A basal or ancestral form of an organism. Now rare.

ΚΠ

1871 St. G. Mivart On Genesis of Species viii. 177 These animals are far from being the root-forms from which all the Vertebrata have diverged.

1884 W. K. Parker Mammalian Descent (1885) iv. 72 A still lower root-form than the Tadpole.

1907 Q. Jrnl. Geol. Soc. 63 p. lxxii The original or root-form with its successive mutations constitutes the Formenreihe.

1992 Systematic Biol. 41 372/1 It is inconceivable that all existing and extinct mammals have sprung from several different and originally separate root-forms.

3. Entomology. A wingless form occurring in some plant lice (esp. of the family Phylloxeridae) feeding on roots.

ΚΠ

1874 Rep. Commissioner Agric. 1873 (U.S. Dept. Agric.) 389 It is only a transient form, the true being the root form or radiciclosa.

1921 H. T. Fernald Appl. Entomol. xxvi. 203 The root form generally goes on, brood after brood, particularly on the European grape, without the formation of leaf galls.

1956 Jrnl. N.Y. Entomol. Soc. 64 101 Black Peach Aphid... Most abundant in the lighter sandy soils where the root form often does serious injury to young trees.

2004 C. Campbell Botanist & Vintner (2006) 164 Boiteau observed a tiny wingless insect emerge from the bark crevice, more compact and rounder than the root form.

This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022).

单词	root form
释义	root formn. Brit. /ˈruːt fɔːm/, U.S. /ˈrut ˌfɔrm/, /ˈrʊt ˌfɔrm/ Origin: Formed within English, by compounding. Etymons: root n.¹, form n. Etymology: < root n.¹ + form n. 1. Linguistics. A word form consisting of an unmodified root (root n.¹ 16a), esp. an uninflected verb form. ΘΚΠ the world > existence and causation > causation > source or origin > [noun] > source or primitive or original form germc1550 stocka1625 seediness1662 primordium1704 germen1794 root form1832 rootstock1862 1832 Congregational Mag. June 344/2 The root-form of the verb, consists, generally, of three root-consonants or radicals. 1875 W. D. Whitney Life & Growth Lang. 13 The root-form of the verb. 1908 Bull. Amer. Geogr. Soc. 40 382 The student of Bantu..will comprehend why root forms are modified at their front end. 1973 Trans. Philol. Soc. 1971 68 -sil is not a permissible Indo-European root form. 2002 W. B. McGregor Verb Classif. Austral. Langs. viii. 340 Increase in the number of inflection-taking verbs that have corresponding ‘root’ forms..with the capability of independent occurrence. 2. Zoology. A basal or ancestral form of an organism. Now rare. ΚΠ 1871 St. G. Mivart On Genesis of Species viii. 177 These animals are far from being the root-forms from which all the Vertebrata have diverged. 1884 W. K. Parker Mammalian Descent (1885) iv. 72 A still lower root-form than the Tadpole. 1907 Q. Jrnl. Geol. Soc. 63 p. lxxii The original or root-form with its successive mutations constitutes the Formenreihe. 1992 Systematic Biol. 41 372/1 It is inconceivable that all existing and extinct mammals have sprung from several different and originally separate root-forms. 3. Entomology. A wingless form occurring in some plant lice (esp. of the family Phylloxeridae) feeding on roots. ΚΠ 1874 Rep. Commissioner Agric. 1873 (U.S. Dept. Agric.) 389 It is only a transient form, the true being the root form or radiciclosa. 1921 H. T. Fernald Appl. Entomol. xxvi. 203 The root form generally goes on, brood after brood, particularly on the European grape, without the formation of leaf galls. 1956 Jrnl. N.Y. Entomol. Soc. 64 101 Black Peach Aphid... Most abundant in the lighter sandy soils where the root form often does serious injury to young trees. 2004 C. Campbell Botanist & Vintner (2006) 164 Boiteau observed a tiny wingless insect emerge from the bark crevice, more compact and rounder than the root form. This entry has been updated (OED Third Edition, November 2010; most recently modified version published online March 2022). < n.1832
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