tonsus

Perfect passive participle of tondeō (“to shave, shear, clip”).

tōnsus (feminine tōnsa, neuter tōnsum); first/second-declension participle

1. having been shaved, shorn, clipped
2. having been cropped, pruned, trimmed
3. having been mowed, reaped
4. having been grazed upon
5. having been plundered, deprived
6. (nominalized, Medieval Latin) a priest, that has had his head tonsured

First/second-declension adjective.

• intōnsus

• Italian: toso
• Romanian: tuns
• Spanish: tuso

From tondeō +‎ -tus (forming action nouns).

tōnsus m (genitive tōnsūs); fourth declension (pre-classical)

1. a hairstyle, haircut, hairdo
   • c. 190 BCE – 185 BCE, Plautus, Amphitryon 443–445:

     Tam consimile'st atque ego: sūra, pēs, statūra, tōnsus, oculī, nāsus vel labra, mālae, mentum, barba, collum - tōtus!

     He's so similar to me: his calves, feet, height, haircut, eyes, nose, and even lips, jaw, chin, beard, neck - all of it!

Fourth-declension noun.

• “tonsus²”, in Charlton T. Lewis and Charles Short (1879), A Latin Dictionary, Oxford: Clarendon Press
• “tonsus”, in Gaffiot, Félix (1934), Dictionnaire illustré latin-français, Hachette.
• "tonsus", in Charles du Fresne du Cange, Glossarium Mediæ et Infimæ Latinitatis (augmented edition with additions by D. P. Carpenterius, Adelungius and others, edited by Léopold Favre, 1883–1887)
• “tonsus”, in William Smith, editor (1854, 1857), A Dictionary of Greek and Roman Geography, volume 1 & 2, London: Walton and Maberly