allowable

From Middle English allowable, alowable, a borrowing from Old French alouable (Modern French allouable), from allouer.

• IPA^(key): /əˈlaʊ.əbəl/

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allowable (comparative more allowable, superlative most allowable)

1. Appropriate; satisfactory; acceptable.
2. Intellectually admissible; valid; probable.
3. Able to be added or deducted in consideration of something.
4. Permissible; tolerable; legitimate.
   • 1650, Thomas Browne, Pseudodoxia Epidemica: […], 2nd edition, London: […] A[braham] Miller, for Edw[ard] Dod and Nath[aniel] Ekins, […], →OCLC:

     And first, although there were more things in nature then words which did expresse them, yet even in these mute and silent discourses, to expresse complexed significations, they took a liberty to compound and piece together creatures of allowable formes unto mixtures inexistent […]

5. (obsolete) Praiseworthy.

• (permissible): leveful

allowable (plural allowables)

1. A permitted amount or activity.