retiens
Retiens is a conjugated form of the French verb retenir, most often encountered as the second-person singular present indicative form (tu retiens) and as the imperative form (retiens). Retenir itself means to retain, to keep back, to detain, or to remember and keep in memory. It covers a range of senses from physical withholding (to restrain or detain someone) to cognitive retention (to remember or retain information).
Etymology and grammar: retenir derives from Latin retinere, formed from re- plus tenere, meaning to hold back
Usage and nuance: The word appears in everyday speech and writing in both concrete and figurative senses.
See also: retenir, rétention, retenue, retenir (related forms and senses of the verb).